Article
Energy & Fuels
Fei Mo, Yanyan Wang, Tingting Song, Xiaoliang Wu
Summary: In this paper, nitrogen-oxygen co-doped hierarchical porous carbon (HPC) was prepared through a one-step carbonization method. The HPC-4 electrode exhibited excellent electrochemical performance due to its three-dimensional interconnected hierarchical porous structure, high content of heteroatomic functional groups, and large specific surface area. A symmetrical supercapacitor assembled with two HPC-4 electrodes achieved an energy density of 21.13 Wh kg-1 (100 W kg-1). Furthermore, a zinc-ion hybrid capacitor constructed with HPC-4 as the cathode, zinc foil as the anode, and 2 M ZnSO4 as the electrolyte showed outstanding capacitance (282.81 F g-1), ultra-high energy density (100.56 Wh kg-1), and excellent cycle performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Agricultural Engineering
Heyang Liu, Hansheng Chen, Kaiyuan Shi, Fei Zhang, Shengwei Xiao, Lingqi Huang, He Zhu
Summary: This study demonstrates the fabrication of porous carbon cathode materials with high specific capacitance and energy density for zinc ion capacitors. The electrochemical performance of these materials is superior to other biomass-derived porous carbon cathodes. The underlying mechanism is evaluated and the feasibility of using lignin resources for high-performance ZICs is presented.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Chemistry, Multidisciplinary
Hongxia Li, Pengyuan Su, Quanxing Liao, Yongdong Liu, Yunfeng Li, Xiaohui Niu, Xiaoyu Liu, Kunjie Wang
Summary: Zinc-ion hybrid capacitors (ZIHCs) have been recognized as a promising energy storage candidate due to their low cost and high safety. In this study, an oxygen-enriched hierarchical porous carbon was fabricated from olive leaves through pyrolysis and chemical activation. The hierarchical porous carbon cathode exhibited high ions adsorption capacity and fast kinetic behaviors, thanks to the abundant interfacial active sites and short ions/electrons transfer length. Additionally, the oxygen-rich functional groups improved the wettability and conductivity of the porous carbon, providing extra pseudocapacitance. The assembled ZIHC device demonstrated an excellent energy density of 136.3 Wh kg(-1), high power output of 20 kW kg(-1), and long cycle life with 91% capacity retention over 20,000 cycles at 10 Ag(-1).
Article
Materials Science, Multidisciplinary
Nilesh R. Chodankar, Swati J. Patil, Sangjin Lee, Jaeho Lee, Seung-Kyu Hwang, Pragati A. Shinde, Indrajit Bagal, Smita Karekar, Ganji Seeta Rama Raju, Kugalur Shanmugam Ranjith, Deepak P. Dubal, Yun-Suk Huh, Young-Kyu Han
Summary: This study presents a scalable approach to improve the electrochemical properties of aqueous zinc ion hybrid capacitors (ZIHCs) by addressing the deficiencies related to the Zn-anode/electrolyte interface and cathode materials. The use of a modified electrolyte and an oxygen-rich 3D MGC cathode resulted in high specific energy and power capability, as well as excellent cycling durability. These findings contribute to the practical application of highly efficient ZIHCs.
Article
Chemistry, Physical
Wenli Zhang, Jian Yin, Wenbin Jian, Ying Wu, Liheng Chen, Minglei Sun, Udo Schwingenschlogl, Xueqing Qiu, Husam N. Alshareef
Summary: The research team developed a new strategy to convert sustainable sodium lignosulfonate resources into highly heteroatom-doped porous carbons with high specific surface areas and doping rates, achieving the preparation of lignin-derived porous carbons with relatively high specific surface areas and heteroatom dopings.
Article
Materials Science, Multidisciplinary
Lu Han, Haiyue Miao, Mengying Ni, Guangzhen Zhao, Guang Zhu, Yanjiang Li, Guoliang Gao, Hailong Huang, Min Xu
Summary: Functional hydrogel electrolytes are essential for functional energy storage devices, and their performance relies on the functional groups and interactions within the polymer chain. This study successfully synthesized a self-healable and redox bromide-ion additive hydrogel electrolyte (SAM-Zn) using a natural polymer backbone. The SAM-Zn showed remarkable self-healing ability, excellent mechanical properties, and high energy density in Zn-ion hybrid supercapacitors. This work provides a simple strategy for combining self-healing properties and excellent electrochemical performance in hydrogel electrolytes.
Article
Electrochemistry
Byunghoon Hwang, Jeongwoo Yang, Dohyeun Kim, Won Chan Yun, Jae W. Lee
Summary: We designed a membraneless potassium bromide electrochemical capacitor (ML-PBEC) single cell that generates high energy density and reduces self-discharge. Highly porous carbon with a hierarchical structure was synthesized from CO2 gas, and the effect of nitrogen doping on the CO2-derived carbon materials' electrochemical performance was investigated. The ML-PBEC single cell, using the synthesized carbon as electrodes and a Br-/Br3- redox active aqueous electrolyte, achieved enhanced energy density by suppressing the cross-diffusion of soluble bromine molecules through electrostatic interaction between N-doped sites' protons and polybromide anions even without a membrane.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Feng Wei, Huadong Tian, Pengmei Chen, Yaohui Lv, Jiarui Huang
Summary: Carbonaceous zinc ion hybrid capacitors (CZHCs) have gained considerable attention due to their high energy density from zinc-ion batteries and the excellent safety and high power density from supercapacitors. However, the complex preparation process for the carbon cathode necessitates the development of a simple and efficient method. This study demonstrates the synthesis of porous carbon nanosheets (C-Xs) through a dual-template strategy and K2CO3 activation of anthracene molecules, resulting in layered sheet-like structures with high surface area. The Zn-C-Xs ZHC cathode exhibits outstanding zinc storage properties, achieving a discharge capacity of 121.7 mAh g(-1), maximum energy density of 109.3 Wh kg(-1), and power density of 15.6 kW kg(-1) in a 3M ZnSO4 electrolyte. After 30,000 cycles, it maintains a capacity retention of 96.2% and a coulombic efficiency close to 100%. This work presents a simple and efficient route for the synthesis of carbon nanosheet cathodes using a dual-template strategy for ZHCs.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Dewei Wang, Shuangyu Wang, Zeming Lu
Summary: The use of potassium thioacetate activation technique to produce S-doped 3D porous carbons (S-3DPCs) for ZHSCs cathodes shows excellent electrochemical performance, with a large specific surface area and a certain amount of sulfur, indicating significant potential for applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Sravani Potham, Kothandaraman Ramanujam
Summary: Zinc-ion hybrid supercapacitors (ZIHSCs) are a highly promising electrochemical energy storage technology due to their high energy density, low cost, environmental sustainability, and inherent safety. A novel energy storage system using hierarchical porous activated carbon with redox-active organic materials as the cathode material for ZIHSCs has been developed. This system, known as redox-active zinc ion hybrid supercapacitors (RAZIHSCs), demonstrates a high energy output, good cycling stability, and low self-discharge and leakage current.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Feng Wei, Hanfang Zhang, Jianfeng Wang, Jinglong Zhuang, Yaohui Lv
Summary: The introduction of heteroatoms into carbon materials enhances zinc ion storage capability, leading to excellent electrochemical performance. In this study, N, S co-doped porous carbons were synthesized from natural biomass using a synergistic activation strategy. These materials exhibited high capacitance, long cycle life, and good rate performance, making them suitable for supercapacitors and zinc ion hybrid capacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Jinglong Zhuang, Feng Wei, Hang Zou, Jianfeng Wang, Mengcheng Han
Summary: In this study, an oxygen-rich lotus-shaped porous carbon (OLPC) cathode was synthesized for high performance zinc ion hybrid capacitors (ZHCs) by using phenanthrene as carbon precursor and potassium oxalate activation. The OLPC cathode displayed superior areal capacity, rate capability, energy density, and long-term life.
Article
Chemistry, Multidisciplinary
Yinglun Sun, Hongyun Ma, Xiaqing Zhang, Bao Liu, Lingyang Liu, Xu Zhang, Jianze Feng, Qingnuan Zhang, Yunxia Ding, Bingjun Yang, Liangti Qu, Xingbin Yan
Summary: This study introduces a new approach using Zn(ClO4)(2) salty ice as the electrolyte, achieving superior performance of a zinc ion hybrid capacitor even at low temperatures. This discovery provides a new insight for constructing low-temperature EES devices using salty ices as electrolytes.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Xiang Wei, Baoping Qiu, Huadong Tian, Yaohui Lv, Wei Zhang, Qingqing Qin, Zailiang Liu, Feng Wei
Summary: A hierarchical porous carbon material was prepared using a self-made Fe-based template strategy and anthracene as the carbon precursor. This material exhibited high specific capacitance and excellent cycling stability, showing great potential for high-performance electrochemical energy storage devices.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Weiyang Zhang, Hongwei Kang, Zhengyan Gu, Huili Liu, Zhikun Li, Xiaona Li, Baocheng Yang
Summary: The synthesis of nanostructured hierarchical porous N-doped functionalized reduced graphene oxide by 2-aminoanthraquinone (N-RGO/AAQs) composites via a facile solvothermal method is successfully achieved. The composites exhibit improved capacity, better wettability, reduced agglomeration of RGO nanosheets, and increased electroactive sites.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Hongqiang Li, Kaining Gan, Ran Li, Huawei Huang, Jiabao Niu, Zhipeng Chen, Jian Zhou, Yan Yu, Jieshan Qiu, Xiaojun He
Summary: In this study, researchers developed a facile carbonization coupled oxidation strategy to produce NiO clusters-decorated Ni-N-C SACs. These SACs exhibited a high Faradaic efficiency of CO and a high turnover frequency for CO production even at high overpotentials. Density functional theory calculations revealed that the highly dispersed NiO clusters played a crucial role in enhancing the reaction kinetics for CO production. This study provides a new pathway for the construction of oxygen-regulated metal-based SACs and various catalytic applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Jun Jiang, Xiao-Li Zhou, Hua-Gang Lv, Han-Qing Yu, Yan Yu
Summary: This article reviews the challenges and optimization strategies for bimetallic-based oxygen evolution reaction (OER) materials, summarizing the state-of-the-art electrocatalysts and discussing the relationship between the compositional/structural features of bimetallic-based materials and their electrocatalytic properties. Future efforts to realize sustainable bimetallic-based OER applications are also discussed.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xianming Xia, Shitan Xu, Fang Tang, Yu Yao, Lifeng Wang, Lin Liu, Shengnan He, Yaxiong Yang, Wenping Sun, Chen Xu, Yuezhan Feng, Hongge Pan, Xianhong Rui, Yan Yu
Summary: The authors developed an artificial heterogeneous interphase (Na@Na2Se/V) on the surface of sodium metal, which exhibits excellent ionic conductivity and mechanical properties. This interphase layer promotes homogeneous sodium deposition without dendrite formation, resulting in outstanding cycling life and electrochemical performance in carbonate-based electrolyte.
ADVANCED MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Jian Zhou, Hong-Yu Hu, Hong-Qiang Li, Zhi-Peng Chen, Chang-Zhou Yuan, Xiao-Jun He
Summary: This review summarizes the advanced carbon materials used as both cathodes and anodes in hybrid metal-ion capacitors (MICs). The key structural/chemical factors for improving the electrochemical performance of carbon materials are highlighted, along with the challenges and opportunities for future research on carbon materials in MICs.
Article
Nanoscience & Nanotechnology
Matthew J. Crafton, Tzu-Yang Huang, Yuan Yue, Raynald Giovine, Vincent C. Wu, Chaochao Dun, Jeffrey J. Urban, Raphaele J. Clement, Wei Tong, Bryan D. McCloskey
Summary: In this study, the extent of chemical reactions of a series of Mn2+/4+-based lithum-excess, cation-disordered rocksalt (DRX) oxyfluorides were quantified using a combination of differential electrochemical mass spectrometry (DEMS) and titration mass spectrometry. The results show that increasing the fluorine content can decrease redox reactions and suppress the generation of high-voltage O2 from the DRX surface.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xiaoning Li, Liangbing Ge, Yumeng Du, Haoliang Huang, Yang Ha, Zhengping Fu, Yalin Lu, Wanli Yang, Xiaolin Wang, Zhenxiang Cheng
Summary: The oxygen evolution reaction (OER) is a critical step for sustainable fuel production. This study demonstrates the development of a surface termination similar to oxyhydroxide in an oxide, which enhances the intrinsic activity of the nanocatalyst and breaks the scaling relationship limit.
Article
Chemistry, Multidisciplinary
Siyi Hou, Chang Yu, Xuedan Song, Yiwang Ding, Jiangwei Chang, Yingbin Liu, Lin Chen, Qianbing Wei, Xiubo Zhang, Jieshan Qiu
Summary: An effective strategy is developed to modulate the in-plane defective density and electronic structure of multi-walled carbon nanotubes by ultra-small-sized g-C3N4 quantum dots via p-p stacking. The optimized heterogeneous catalyst exhibits an optimal photoelectric conversion efficiency of up to 8.30% in the triiodide reduction reaction, outperforming the Pt reference.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinyan Li, Xin Zhang, Xiaobin Niu, Jing Zhang, Rui Wu, Jun Song Chen, Yan Yu
Summary: Inspired by the multilayered structure of pine trees, researchers developed a 3D hierarchical multilayered tin-doped antimony nanoarray coated with a thin carbon layer. This material exhibited improved kinetic properties for sodium diffusion and lower volume expansion, leading to enhanced structural stability and excellent electrochemical performance for sodium storage.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ji Qian, Yang Ha, Krishna Prasad Koirala, Di Huang, Zhi Huang, Vincent S. S. Battaglia, Chongmin Wang, Wanli Yang, Wei Tong
Summary: This study reports the synthesis of a highly fluorinated Li-excess cation-disordered rock salts (DRX) cathode, Li1.2Mn0.6Ti0.2O1.8F0.2, based on cost-effective and earth-abundant transition metals via a solid-state reaction. The fluorinated DRX cathode using an ammonium fluoride precursor exhibits uniform particle size, delivering a specific discharge capacity of 233 mAh g(-1) and specific energy of 754 Wh kg(-1), with 206 mAh g(-1) retained after 200 cycles. The study demonstrates the potential to develop next-generation cost-effective DRX cathodes with enhanced capacity retention for high-energy Li-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yuanyang Xie, Chang Yu, Xiubo Zhang, Guibin Gu, Jinhe Yu, Yi Yang, Jieshan Qiu
Summary: The poor processability of hydroxide has hindered its practical applications. This study reports a processable highly concentrated double hydroxide ink that can be processed into various forms due to its interior-ordered structure, and it shows good performance in zinc ion batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Yanqi Yu, Zihan Zhang, Yan Yu
Summary: This study used particle sensors to investigate the maturation process of phagosomes, and found that the transition from actin to microtubule transport mode can regulate the duration and maturation speed of early phagosomes. This is crucial for effective degradation of pathogens.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Multidisciplinary
Xingyu Wang, Yu Shi, Jieshan Qiu, Zhiyu Wang
Summary: This study proposes a LiF-involved molten-salt etching method for producing delaminatable MXenes with comparable quality and supercapacitive performance to those made by solution etching. This approach combines the benefits of molten-salt etching in processability with the high exfoliation efficiency of the solution-based etching method.
CHEMICAL COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Shitan Xu, Yi Yang, Fang Tang, Yu Yao, Xiang Lv, Lin Liu, Chen Xu, Yuezhan Feng, Xianhong Rui, Yan Yu
Summary: Next-generation secondary batteries, such as SIBs and PIBs, have great potential for large-scale energy storage systems due to their abundant and cost-effective sodium/potassium raw materials. However, the performance of SIBs (PIBs) relies heavily on the characteristics of the cathode material, and the poor electron conductivity of sodium/potassium vanadium fluorophosphate (MVPF) limits its application in large-scale energy storage. Various modification strategies, including conductive coating, morphological regulation, and heteroatomic doping, have been proposed to enhance the electronic conductivity and ion transportation of MVPF cathodes. Additionally, the development and application of MVPF cathodes in SIBs under low temperature conditions are discussed.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Kaining Gan, Hongqiang Li, Ran Li, Jiabao Niu, Jun He, Dedong Jia, Xiaojun He
Summary: The conversion of CO2 to syngas (H-2 and CO) via electrochemical reduction is a promising strategy for mitigating the greenhouse effect. However, controlling H-2/CO ratios over a wide voltage range is challenging. This study proposes a new method of fabricating Ni-N co-doped carbon nanosheets with tunable H-2/CO ratios. After stability testing, the current density and H-2/CO ratios remained constant, indicating robust long-term stability. This work may contribute to the development of efficient and low-budget electrocatalysts for tunable syngas production.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Yangjun Ma, Xiangtong Meng, Kai Li, Lipeng Zhang, Yadong Du, Xiang Cai, Jieshan Qiu
Summary: Electrocatalytic interconversion of iodide/triiodide is crucial for iodine-involved energy technologies. In this study, N,Se-co-doped porous carbon with enriched active sites (named NSeC) was fabricated through a two-step approach. Spectroscopy measurements confirmed the incorporation of extrinsic N and Se species into the carbon matrix. The NSeC sample synthesized at 900 degrees C exhibited excellent durability and high electrocatalytic activity towards triiodide reduction.
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)
