Article
Electrochemistry
Chen Cai, Gary M. Koenig
Summary: To increase the energy and power density of batteries, engineering the electrode structure can provide improvements. Sintered electrodes can achieve high areal loadings, but may face electronic and/or ionic transport limitations as loadings and thicknesses increase.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Sergey Yu. Luchkin, Maria A. Kirsanova, Dmitry A. Aksyonov, Svetlana A. Lipovskikh, Victoria A. Nikitina, Artem M. Abakumov, Keith J. Stevenson
Summary: Li-rich layered metal oxides have been extensively studied as potential positive electrode materials for Li-ion batteries. This research investigates the cycling-driven electrochemical activation process in Li-rich materials, which leads to an increase in reversible capacity. The activation process involves oxidation and reduction reactions, with the rate being influenced by the cycling rate.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Seong-Nam Lee, Deok-Hye Park, Ji-Hwan Kim, Sang-Hyun Moon, Jae-Sung Jang, Sung-Beom Kim, Jae-Hoon Shin, Yu-Yeon Park, Kyung-Won Park
Summary: Fe-doped truncated octahedral LiMn2O4 (LMO) cathodes were synthesized in this study to improve the stability of LMO in Li-ion batteries (LIBs). The results showed that the Fe-doped LMO cathode with an appropriate amount of dopant exhibited the best LIB performance, with the highest Li+ ion diffusivity.
Article
Materials Science, Multidisciplinary
Linqiao Liang, Haiyang Liu, Yongshun Liang, Yiyao Li, Wei Bai, Junming Guo, Mingwu Xiang
Summary: A new Ni-Zn dual-doping strategy was proposed to synthesize various LiNi0.05ZnxMn1.95-xO4 (x = 0-0.05) materials with good spinel structure and unique polyhedron morphology. The Ni-Zn co-doping effectively alleviated the problems of manganese dissolution and Jahn-Teller effect. The optimized LiNi0.05Zn0.02Mn1.93O4 cathode showed good electrochemical performance with high initial discharge capacity and long cycle stability, making it a promising cathode material for lithium-ion batteries.
Article
Chemistry, Multidisciplinary
Alfonso Pozio, Mariasole Di Carli, Annalisa Aurora, Mauro Falconieri, Livia Della Seta, Pier Paolo Prosini
Summary: Activated hard carbons from waste biomasses were used as active materials for battery electrodes, showing good performance in lithium-sulfur and lithium-ion batteries.
Article
Electrochemistry
Hong Zhang, Jianyue Jiao, Ao Zen, Enyue Zhao, Jinkui Zhao, Xiaoling Xiao
Summary: A Zr/Ti trace co-doping strategy is proposed to stabilize the structure of Li-rich Mn-based layered oxide cathodes, resulting in Li1.2Mn0.53Ni0.13Co0.13Zr0.005Ti0.005O2 with bulk phase disorder and surface Zr-enriched structures. This modified material exhibits higher specific capacity and excellent long-cycle performance, making it a promising candidate for commercial applications.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Xiaojie Zhang, Xiong Lan, Yongbao Feng, Xianzhen Wang, Shuo Kong, Ziming Xu, Zhenping Ma, Wenbin Gong, Yagang Yao, Qiulong Li
Summary: This study successfully developed a high-performance flexible aqueous rechargeable lithium-ion battery. By designing binder-free 3D Ni-doped LiMn2O4 nanosheets as the cathode material, the battery's performance can be enhanced and the cycle life can be prolonged. The quasi-solid-state device constructed using this cathode material and a rugby-shaped NaTi2(PO4)(3)/CC as the negative electrode exhibits remarkable electrochemical performance and flexibility.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Engineering, Environmental
Ruibai Cang, Ke Ye, Shuangxi Shao, Kai Zhu, Jun Yan, Guiling Wang, Dianxue Cao
Summary: Aqueous batteries are suitable for large-scale storage applications due to their high safety level, low cost, and excellent durability. A new anode material, PTC-S, has been reported to be more stable in aqueous Mg-Li ion batteries compared to other electrode materials. By using PTC-S and LiMn2O4 as cathode and anode materials, a dual-ion salt aqueous battery exhibits high capacity and excellent cycling stability.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Josu Olmos, Inigo Gandiaga, Andoni Saez-de-Ibarra, Xabier Larrea, Txomin Nieva, Iosu Aizpuru
Summary: This paper presents empirical cycling degradation models designed for NMC and LFP lithium-ion battery chemistries, built upon large sets of degradation data collected from the literature and validated with low mean absolute errors. The analysis of the models focuses on the impact of different stress factors on the overall degradation of the battery chemistries, providing guidance for selecting the best cell reference for a specific application.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Materials Science, Ceramics
Jinfeng Liu, Zihao Yang, Qiaoqiao Liu, Yan Liu
Summary: In this study, a series of lithium-rich cathode materials modified by co-doping of anions and cations were synthesized using the ball milling spray drying method. XRD, SEM, TEM, and XPS characterizations confirmed the successful co-doping of Mo and F elements into the material structure and explained the modification mechanism. Electrochemical performance evaluations showed that Mo and F doping significantly improved the electrochemical properties of the lithium-rich cathode material. The assembled batteries using MF-LR samples exhibited excellent performance, with high initial capacity and good capacity retention after cycling.
CERAMICS INTERNATIONAL
(2023)
Article
Electrochemistry
Khushnuda Nur, Christoph Roitzheim, Martin Finsterbusch, Martin Bram, Olivier Guillon
Summary: This study demonstrates that cold sintering can effectively densify LiMn2O4 at lower temperatures, leading to improved discharge capacity and cycling stability without the need for post-annealing treatment. This is achieved through the removal/thinning of the insulating Li2CO3 layer.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Engineering, Chemical
Shuling Liu, Wei Zhang, Lei Ren, Ying Li, Jie Wang, Chao Wang
Summary: This work successfully synthesized a novel heterostructural architecture consisting of well-dispersed CoP nanoparticles embedded in 3D N, P co-doped porous carbon networks. The unique 3D NP-PC networks mitigate volume change, enhance conductivity, and provide electron/ion transport channels, leading to superior electrochemical activities and cycling stability for lithium and sodium storage.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Chemistry, Physical
Zeyu Hui, Karthik S. Mayilvahanan, Krystian Ganko, Yuan Yang, Xiao Zhang, Zhengyu Ju, Kenneth J. Takeuchi, Amy C. Marschilok, Guihua Yu, Esther Takeuchi, Alan C. West
Summary: Multi-scale physics-based models are optimized for maximum energy density by adjusting porosity and mass loading. Electrode-scale properties impact optimal design, but can be generalized into convenient correlations that provide guidelines for optimization of electrode architectures. These correlations are consistent with prior optimization results in the literature.
ENERGY STORAGE MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Sekar Praveen, Gyu Sang Sim, Nitheesha Shaji, Murugan Nanthagopal, Chang Woo Lee
Summary: This study fabricates flexible self-standing electrodes using 3D printing technology and functionalizes the electrodes by incorporating vapour grown carbon fibers. A fine balance between electrochemical performance and flexibility is achieved by varying the ink component ratios. The flexible batteries demonstrate good performance in both half-cell and full-cell assemblies, highlighting their importance in real-time applications.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
V. Bhasin, K. K. Halankar, A. Biswas, S. K. Ghosh, S. K. Sarkar, S. N. Jha, D. Bhattacharyya
Summary: Radio-frequency magnetron sputtering was used to deposit transition metal doped TiO2 thin film electrodes on stainless steel substrates. The doped thin film electrodes showed high charge storage capacities, especially the Fe doped samples, which maintained a high specific capacity even at high current rates. The results of this study provide useful insights for the practical application of Fe, Co, and Mn doped TiO2 electrodes in lithium ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)