Article
Chemistry, Multidisciplinary
Parham Pirayesh, Karnpiwat Tantratian, Maedeh Amirmaleki, Feipeng Yang, Enzhong Jin, Yijia Wang, Lyudmila V. Goncharova, Jinghua Guo, Tobin Filleter, Lei Chen, Yang Zhao
Summary: Metal anodes are highly desirable for next-generation batteries due to their high capacity and low potential. However, challenges such as dendrite growth and volume change hinder their practical applications. This study demonstrates the use of organic and inorganic hybrid interfaces to achieve stable electrochemical performance for Li- and Na-metal anodes. The optimized thicknesses of the nanoalloy interfaces differ for Li- and Na-metal anodes, and the mechanical stability of the interfaces influences the electrochemical performance. This research establishes a fundamental understanding and connection between mechanical properties and electrochemical performance for alkali-metal anodes.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xingyi Wang, Kailin Luo, Lixin Xiong, Tengpeng Xiong, Zhendong Li, Jie Sun, Haiyong He, Chuying Ouyang, Zhe Peng
Summary: This study investigates the synergistic effect of functional alloying structure and Li+ solvation mediated interfacial kinetic on lithium metal protection. By constructing a Li alloy matrix with a bi-functional silver-Li3N blended interface, fast Li+ conductivity and high Li affinity can be achieved, leading to decreased nucleation and mass transfer-controlled overpotentials. Additionally, the inward diffusion depth of Li adatoms inside Ag sites can be limited by the Li+ solvation structure, thus elongating the Li protection ability of the Ag-Li3N interface.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiangru Sun, Shaohua Yang, Ting Zhang, Yanbin Shi, Lei Dong, Guo Ai, Dejun Li, Wenfeng Mao
Summary: In this study, a high-dielectric artificial solid-electrolyte interface (SEI) was designed to regulate the electric field distribution and Li+ flux and stabilize the interface in lithium metal anodes (LMAs). The artificial SEI demonstrated remarkable cycling performance in both symmetric cell configuration and LiCoO2||Li full cells. This work provides a new physical perspective for the stable LMAs by using the novel configuration of the artificial SEI.
Review
Chemistry, Multidisciplinary
Zhenxing Wang, Zhenhua Sun, Juan Li, Ying Shi, Chengguo Sun, Baigang An, Hui-Ming Cheng, Feng Li
Summary: Lithium (Li) is considered the best choice for high energy density energy storage systems, but uncontrollable dendrite formation causes safety concerns and poor coulombic efficiency. This review focuses on the factors influencing dendrite evolution, from formation to growth, in order to understand deposition chemistry better. Special attention is given to the effects of various factors on Li+ movement, desolvation, solid electrolyte interphase formation, and diffusion coefficient, with recommendations for reducing side reactions and volume expansion.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Physical
Xiang Han, Jizhang Chen, Minfeng Chen, Weijun Zhou, Xiaoyan Zhou, Guanwen Wang, Ching-Ping Wong, Bo Liu, Linshan Luo, Songyan Chen, Siqi Shi
Summary: In this study, a separator modified by two-dimensional MXene and solid-state electrolyte LAGP was designed to induce planar lithium plating and suppress dendritic lithium formation in high-energy-density lithium batteries. The novel strategy of regulating lithium deposition and engineering solid electrolyte interphases improves the cycling performance of the battery and can be applied to other alkali metal anodes.
ENERGY STORAGE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Chenyi Sun, Yinghui Yang, Xiufang Bian, Rongzhang Guan, Chao Wang, Dujiang Lu, Li Gao, Dongmei Zhang
Summary: The study introduced a 3D Cu host embellished by CuO and SnO2 as a current collector for the Li-metal anode, which effectively addressed the challenges of significant volume variation, unstable interface, and uneven deposition of Li in commercial applications. The resulting 3D CSCC electrode demonstrated excellent cycling performance and deposition morphology, showing potential for use in high-performance Li-metal systems.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Physics, Applied
Fabian Dietrich, Eduardo Cisternas, Pedro Marcelo Pasinetti, Gonzalo dos Santos
Summary: Li diffusion in LixV2O5 was studied using first-principles calculations. Different diffusion pathways were investigated, and the diffusion coefficients were obtained using Kinetic Monte Carlo simulations and statistical thermodynamics. The simulations showed that diffusion mainly occurs along the [010] direction, and the diffusion coefficients follow Arrhenius' Law. The consideration of concentration-dependent barrier heights in the simulations was demonstrated to be necessary by observing significant changes in the concentration-dependence of the diffusion coefficients. The simulated diffusion coefficients were in good agreement with experimental data.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Zhen Hou, Rui Zhou, Yunduo Yao, Zhiwen Min, Ziheng Lu, Ye Zhu, Jean-Marie Tarascon, Biao Zhang
Summary: This research demonstrates the reversibility of Ca deposition/stripping in rechargeable Ca metal batteries under a strong cation-solvent interaction, resulting in organic-rich/CaF2-poor solid electrolyte interphases (SEIs). The optimized electrolyte enables the pairing of organic cathode with RCMBs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Dehui Zhang, Zihao Li, Huirong Wang, Wenguang Zhang, Yanxia Che, Xiaoyan Lin, Shumian Ding, Xiaoming Wei, Hebing Zhou, Weishan Li
Summary: In this work, a novel strategy for constructing a highly stable and lowly polarized surface film on Li metal anode is reported. The unique film, formed by dropping a solution containing zinc trifluoromethanesulfonate [Zn(OTF)(2)] and fluoroethylene carbonate (FEC) onto Li anode, consists of Li-Zn alloy and LiF/polymer, providing protection and nucleation sites for Li plating/stripping. The Li anode with this unique surface film exhibits excellent cycling stability and low plating/stripping overpotentials.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jin Su, Mauro Pasta, Ziyang Ning, Xiangwen Gao, Peter G. Bruce, Chris R. M. Grovenor
Summary: Solid-state batteries offer higher energy density and improved safety. This study demonstrates a reliable thin-film coating strategy to reduce the interfacial resistance between the electrolyte and metal anode in solid-state lithium metal batteries, achieving stable cycling performance and improved critical current density.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Xudong Duan, Binqi Li, Jiani Li, Xiang Gao, Lubing Wang, Jun Xu
Summary: This work establishes a mechanism model to characterize the Li deposition-stripping process and enables the quantitative prediction of Li deposition during charging-discharging cycles. A smart charging strategy is proposed based on the understanding of the Li deposition-stripping process. The influence of anode heterogeneity on Li plating is also quantified. The results highlight the promise of physics-based mechanistic modeling for battery design and charging protocols.
ADVANCED ENERGY MATERIALS
(2023)
Article
Metallurgy & Metallurgical Engineering
Jingru Liu, Qingxi Yuan, Wangxia Huang, Xiping Song
Summary: In this study, a novel nanoporous magnesium-lithium material prepared by a physical vapor deposition method exhibits excellent hydrogen generation property. It can efficiently and quickly generate hydrogen with saltwater, showing high hydrogen generation amount and rates. The improved performance is attributed to the nanoporous structure and the addition of lithium element.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Chemistry, Physical
Yuhang Liu, Jinmeng Sun, Xiaoqi Hu, Yifan Li, Hongfang Du, Ke Wang, Zhuzhu Du, Xin Gong, Wei Ai, Wei Huang
Summary: This study investigates the effect of the structure of lithiophilic sites on lithium deposition. The results show that a host with densely and homogenously distributed lithium affinity sites can achieve uniform lithium nucleation and deposition. Symmetric cells designed with this host demonstrate a long lifespan and low overpotential.
Article
Computer Science, Interdisciplinary Applications
Bert Mortier, Pieterjan Robbe, Martine Baelmans, Giovanni Samaey
Summary: We have developed a novel multilevel asymptotic-preserving Monte Carlo method, called Multilevel Kinetic-Diffusion Monte Carlo (ML-KDMC), for simulating the kinetic Boltzmann transport equation. By incorporating this method within a Multilevel Monte Carlo (MLMC) framework and utilizing a hierarchy of larger time step sizes, the simulation cost is further reduced. The ML-KDMC method outperforms the single-level KDMC method by several orders of magnitude, demonstrating its efficiency.
JOURNAL OF COMPUTATIONAL PHYSICS
(2022)
Article
Chemistry, Physical
John S. Corsi, Samuel S. Welborn, Eric A. Stach, Eric Detsi
Summary: In this study, model nanoporous gold anodes were used to investigate the degradation behavior of nanostructured alloy-type anodes during cycling. Transmission electron microscopy and small-angle X-ray scattering were used across several length scales to study anodes cycled to various sequential charge states. By coupling these data sets, a general model for the degradation of the solid-electrolyte interphase (SEI) and morphology during the early stages of cycling in nanoporous alloy-type anodes was proposed.
ACS ENERGY LETTERS
(2021)
Article
Chemistry, Physical
Ethan P. Kamphaus, Perla B. Balbuena
CHEMISTRY OF MATERIALS
(2019)
Article
Chemistry, Physical
Ethan P. Kamphaus, Perla B. Balbuena
Summary: Lithium sulfur batteries are promising next-generation technology that can meet various demands of modern society, but they face unique challenges related to the polysulfide shuttle effect and the design of a solid electrolyte interphase (SEI). A study has shown that nucleation of Li2S phase stabilizes reduction products of Li2S8, enhancing the reduction capacity of polysulfides.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Ethan P. P. Kamphaus, Perla B. B. Balbuena
Summary: The solid-electrolyte interphase (SEI) layer is crucial for battery technology with lithium metals. Research using computational chemistry simulations focused on studying the dissolution properties of SEI components, revealing that LiOH is the most likely component to dissolve in the electrolyte, followed by LiF, Li2CO3, and Li2O.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Kathryn Holguin, Kaiqiang Qin, Ethan Phillip Kamphaus, Fu Chen, Lei Cheng, Gui-Liang Xu, Khalil Amine, Chao Luo
Summary: Tailoring the molecular structures of organic electrode materials (OEMs) in Na-ion batteries can improve their performance, but the effect of substitution rules on specific capacity and working potential is still unclear. This study examines three sodium carboxylates with selective N substitution or extended conjugation structure to establish substitution rules for high-capacity OEMs, and achieves extended cycle life and feasibility of all-organic batteries through rational host design and electrolyte modulation.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Ashley R. Bielinski, Ethan P. Kamphaus, Lei Cheng, Alex B. F. Martinson
Summary: This study provides new insight into the thermodynamics and kinetics of the trimethylaluminum (TMA) and H2O atomic layer deposition (ALD) reactions. The experimental heat is found to closely align with the predicted heat based on computational models and standard heats of formation, but the TMA reaction exhibits significantly faster kinetics compared to the H2O reaction.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Heonjae Jeong, Ethan P. Kamphaus, Paul C. Redfern, Nathan T. Hahn, Noel J. Leon, Chen Liao, Lei Cheng
Summary: Energy storage concepts based on multivalent ions, such as calcium, have potential for becoming next-generation batteries. However, the development of calcium batteries is hindered by the lack of suitable materials. Developing a calcium salt that is chemically stable and enables reversible electrodeposition of calcium is critical.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Ethan P. Kamphaus, Jessica Catharine Jones, Nannan Shan, Alex B. F. Martinson, Lei Cheng
Summary: Routes to area and site-selective atomic layer deposition (ALD) are challenging. This study computationally identifies conditions for site-selective ALD by hydrating surface defects and demonstrates the mechanistically clear path to site-selective ALD through in situ ellipsometric measurements.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Ashley R. R. Bielinski, Ethan P. P. Kamphaus, Lei Cheng, Alex B. F. Martinson
Summary: In this study, in situ pyroelectric calorimetry and spectroscopic ellipsometry were used to investigate the surface reactions in atomic layer deposition of zirconium oxide. The results revealed that the reaction heat is dependent on factors such as growth rate, equilibrium surface hydroxylation, and extent of the reaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Jessica C. Jones, Ethan P. Kamphaus, Jeffrey R. Guest, Anil U. Mane, Lei Cheng, Alex B. F. Martinson
Summary: Unique atomic arrangements on material surfaces can exhibit distinct reactivity, providing opportunities for selective surface chemistry. However, site-selective atomic layer deposition (ALD) processes have not been widely achieved experimentally. This study presents evidence for site-selective ALD targeting oxygen vacancies on TiO2 single crystals. In situ ellipsometry and atomic force microscopy (AFM) imaging confirm the site-specific growth mechanism dependent on surface oxygen vacancy density. This approach may offer future opportunities for targeted remediation of electronically imperfect interfaces.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Dawei Xia, Ethan Phillip Kamphaus, Anyang Hu, Sooyeon Hwang, Lei Tao, Sami Sainio, Dennis Nordlund, Yanbao Fu, Haibo Huang, Lei Cheng, Feng Lin
Summary: We provide design criteria for dilute ether electrolytes that can support reversible graphite anodes by tailoring solvation structures and thermodynamic properties. Our redesigned electrolyte consisting of 1,3-dioxolane (DOL) solvent and lithium bis(fluorosulfonyl)imide (LiFSI) salt weakens Li-solvent interaction and results in an inorganic-rich solid electrolyte interphase, achieving high Coulombic efficiency and capacity retention. The weakly solvated electrolyte maintains desirable transport properties and enables better rate capability than carbonate electrolytes.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Nathan T. Hahn, Ethan P. Kamphaus, Ying Chen, Vijayakumar Murugesan, Karl T. Mueller, Lei Cheng, Kevin R. Zavadil
Summary: Practical Mg batteries require electrolytes with stability towards both reduction by Mg metal and oxidation by high voltage cathodes. State-of-the-art Mg electrolytes based on weakly coordinating Mg salts use ether-type solvents for reductive stability, but their oxidative stabilities are not ideal. In this work, a selective solvation approach using a combination of glyme and hydrofluoroether solvents is reported to improve the oxidative stability while maintaining the reductive stability necessary for Mg cycling. The study also relates the coordination interactions among solvents and anions with Mg2+ to inform the design of future electrolytes.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Nathan T. Hahn, Ethan P. Kamphaus, Ying Chen, Vijayakumar Murugesan, Karl T. Mueller, Lei Cheng, Kevin R. Zavadil
Summary: In this study, we propose a selective solvation approach combining glyme and hydrofluoroether solvents. The selective solvation of Mg2+ by the glyme solvent component increases the oxidative stability of glyme while maintaining sufficient reductive stability of the non-coordinating hydrofluoroether. This approach enables the design of electrolytes with greater oxidative stability than glyme-only electrolytes while retaining enough reductive stability to cycle Mg metal. We also investigate the influence of various coordination interactions among the solvents and anions with Mg2+ on their electrochemical stabilities to better inform the design of future electrolytes.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Ethan P. Kamphaus, Karoline Hight, Micah Dermott, Perla B. Balbuena
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
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)
