Article
Chemistry, Inorganic & Nuclear
M. Akhilash, P. S. Salini, K. Jalaja, Bibin John, T. D. Mercy
Summary: A Li-rich cathode material, Li1.5Ni0.25Mn0.75O2.5, with a well-ordered layered structure was successfully synthesized using a simple carbonate co-precipitation method followed by calcination. SEM analysis showed cylinder-shaped particles with diameter in the range 100-350 nm, and electrochemical evaluation revealed an initial specific capacity of around 240 mAhg(-1) at C/20 rate.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Review
Materials Science, Multidisciplinary
Zhe-Dong Liu, Chun-Ying Wang, Jing-Chao Zhang, Jia-Wei Luo, Cui-Hua Zeng, Wei-Di Liu, Rui Liu, Ya-Nan Chen
Summary: The instability of high-Ni cathode materials and the high cost of Co have limited their further application. Therefore, methods to increase the stability of high-Ni cathodes with reduced Co content have been extensively investigated. This review summarizes various effective research progress and potential modification strategies to meet future commercial energy demands.
Article
Chemistry, Physical
Pilgun Oh, Jeongsik Yun, Jae Hong Choi, Gyutae Nam, Seohyeon Park, Tom James Embleton, Moonsu Yoon, Se Hun Joo, Su Hwan Kim, Haeseong Jang, Hyungsub Kim, Min Gyu Kim, Sang Kyu Kwak, Jaephil Cho
Summary: In this study, a secondary doping ion substitution method is proposed to improve the electrochemical reversibility of LCO materials for Li-ion batteries. The utilization of Na ions as functional dopants and Fe-ion substitution improves the capacity retention and cycling stability of LCO. This provides a new avenue for the manufacturing of layered cathode materials with a long cycle life.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Juho Valikangas, Petteri Laine, Tao Hu, Pekka Tynjala, Marcin Selent, Palanivel Molaiyan, Kahr Juergen, Ulla Lassi
Summary: This study explores the effects of further processing on the electrochemical performance of the LiNi0.975Al0.025O2 cathode material. Washing the material surface forms a nonconductive nickel oxide phase, reducing initial capacity and enhancing cycle properties. The secondary heat treatment re-lithiates the surface nickel oxide back to the cathode material, increasing initial capacity and cycle properties. Avoiding long-term high voltage charging significantly improves the cycle life.
Article
Materials Science, Ceramics
Xiaoying Luo, Yunsong Li, Xuan Cheng
Summary: Sulfur modification can effectively stabilize Li2FeSiO4 cathodes. In this study, a series of carbon-coated Li2FeSiO4 samples with different sulfur contents were prepared and their crystal structures, chemical compositions, microstructures, and electrochemical performances were systematically studied. It was found that sulfur contents over 10% formed impure phases and three types of sulfur states could be found when sulfur and carbon were added to Li2FeSiO4. The overall performance of sulfur-carbon co modified sample is influenced complicatedly by the sulfur content, and the best overall performance was observed with 15% sulfur modification.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Ryan Brow, Anthony Donakowski, Alex Mesnier, Drew J. Pereira, K. Xerxes Steirer, Shriram Santhanagopalan, Arumugam Manthiram
Summary: Nickel-rich cathode materials, despite being a promising choice for electric vehicles, face challenges related to long-term cycle life retention and air stability. This study investigates the use of surface treatments, specifically the coating of LiNi0.9Mn0.05Al0.05O2 cathode materials with lithium phosphate, to improve their performance. The results show that low concentration phosphoric acid coating leads to delayed voltage decay and enhanced discharge capacity during high-voltage cycling.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Binkai Yu, Yuqiu Wang, Jiaqi Li, Yuqin Jin, Zixin Liang, Limin Zhou, Mingzhe Chen
Summary: As the price of cobalt rises, the demand for cobalt-free or low-cobalt electrode materials in lithium-ion batteries is urgent. The introduction of high entropy (HE) materials has attracted attention for their potential in low cobalt and cobalt-free lithium-ion batteries. This perspective discusses the comparison between new cathode materials and traditional materials, as well as the latest progress in maintaining stability and conductivity. It also explores the potential use of low cobalt and cobalt-free HE layered oxides as replacements for cobalt in lithium-ion batteries. Future research directions and synthesis methods for HE cathode materials are also discussed.
Article
Green & Sustainable Science & Technology
Xuehu Zhong, Junwei Han, Xiaohui Mao, Lingling Chen, Mengjun Chen, Hailing Zhu, Hongbo Zeng, Wenqing Qin
Summary: An effective pyrolysis method using dimethyl formamide (DMF) was proposed to efficiently separate cathode active materials and aluminum foils from spent lithium-ion batteries (LIBs). The results showed that the addition of DMF enhanced the separation of the materials by generating micro bubbles, and about 98.93% of the cathode active materials were recovered after pyrolysis. This method also facilitated the decomposition of toxic electrolyte and achieved the safe disposal of organic pollutants. The recovered materials hardly contained impurities, which is beneficial for their regeneration.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Materials Science, Ceramics
Quang Quoc Viet Thieu, Weldejewergis Gebrewahid Kidanu, Hong Diem Nguyen, Truc Linh Thi Nguyen, My Loan Phung Le, Van Hoang Nguyen, Dinh Quan Nguyen, Nhung Thi Tran, Xuan Vien Nguyen, Il Tae Kim, Tuan Loi Nguyen
Summary: A nanostructured Ni-ferrite material, NiFe2O4, with superior electrochemical properties, including high reversible capacity and long cyclability, was successfully synthesized through co-precipitation in hot water followed by an annealing process. The excellent performance can be attributed to the nano-sized materials, the unique properties of the Ni-ferrite spinel, as well as the protection and catalytic effect of the spinel structure and the presence of Fe and Ni metals.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Jiale Wang, Yan Nie, Chang Miao, Yi Tan, Minyue Wen, Wei Xiao
Summary: A composite powder of LiNi0.83Co0.11Mn0.06O2 co-doped with Mg2+ and Ti4+ was successfully synthesized and showed superior electrochemical performance, with high discharge specific capacity and cycling stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Chunliu Li, Banglei Zhao, Junfeng Yang, Linchao Zhang, Qianfeng Fang, Xianping Wang
Summary: Li2ZrO3-coated and Al-doped micro-sized monocrystalline LiMn2O4 powder shows superior cycling and rate performance, attributed to the synergistic effect of Al-doping and Li2ZrO3-coating.
Review
Materials Science, Multidisciplinary
Kaidi Du, Edison Huixiang Ang, Xinglong Wu, Yichun Liu
Summary: The recycling of spent lithium-ion batteries is crucial due to their environmental hazards and resource consumption. This review critically analyses the value, need, and existing technologies for recycling these batteries. It also discusses the progress in recycling other components and addresses the prospects for recycling these batteries in terms of government, users, battery manufacturers, and recyclers.
ENERGY & ENVIRONMENTAL MATERIALS
(2022)
Review
Electrochemistry
Jin Song, Hangchao Wang, Yuxuan Zuo, Kun Zhang, Tonghuan Yang, Yali Yang, Chuan Gao, Tao Chen, Guang Feng, Zewen Jiang, Wukun Xiao, Tie Luo, Dingguo Xia
Summary: Lithium-manganese-oxides have been a promising cathode material with environmental friendliness, resource abundance, and low biotoxicity. However, challenges such as Jahn-Teller distortion, manganese dissolution, and phase transition have hindered the progress of full manganese-based cathode materials (FMCMs). With the increasing demand for vehicle electrification and large-scale energy-storage grids, new research waves focusing on FMCMs are emerging. This review provides a comprehensive examination of the history, structures, advantages, challenges, resolution strategies, and latest developments of FMCMs, as well as discussing controversial topics in Li2MnO3-based cathode materials.
ELECTROCHEMICAL ENERGY REVIEWS
(2023)
Article
Chemistry, Physical
Michael Yi, Zehao Cui, Hugo Celio, Arumugam Manthiram
Summary: High-nickel layered oxides are widely used as cathode materials for high-energy density lithium-based batteries. However, their surface air instabilities hinder mass production. This study finds that the average oxidation state of nickel is the critical parameter influencing the air stability, which is greatly affected by the contents of manganese and cobalt.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Zhaoyong Chen, Xiaoyan Yan, Huali Zhu, Yanxia Wang, Qiming Liu, Junfei Duan, Shan Ji, Bruno G. Pollet
Summary: In this study, a porous prism architecture of Li1.2Mn0.54Ni0.13Co0.13O2 materials is successfully constructed, leading to improved initial discharge capacity and rate capability of lithium-ion batteries. The porous morphology promotes the intercalation and extraction of lithium ions, while the one-dimensional prism architecture ensures superior structural stability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yu-Xue Mo, Yi-Jin Wu, Zu-Wei Yin, Wen-Feng Ren, Zhen-Guang Gao, Peng-Fang Zhang, Jin-Xia Lin, Yao Zhou, Jun-Tao Li, Ling Huang, Shi-Gang Sun
Article
Chemistry, Applied
Wen-Feng Ren, Jun-Tao Li, Shao-Jian Zhang, Ai-Ling Lin, You-Hu Chen, Zhen-Guang Gao, Yao Zhou, Li Deng, Ling Huang, Shi-Gang Sun
JOURNAL OF ENERGY CHEMISTRY
(2020)
Article
Nanoscience & Nanotechnology
Wen-Feng Ren, Jia-Bo Le, Jun-Tao Li, Yi-Yang Hu, Si-Yu Pan, Li Deng, Yao Zhou, Ling Huang, Shi-Gang Sun
Summary: In this study, hydrogen-bonding cross-linked thiourea-based polymeric binders (denoted CMC-co-SN) were designed and prepared for Si anodes. These binders, formed through in situ thermopolymerization, create a tight and physical interlocked layer with the Cu current collector, significantly improving the electrochemical performance of Si anodes by enhancing binding forces and maintaining electrode integrity. The results show high initial Coulomb efficiency and excellent cyclability for both micro- and nano-sized Si particles when using these binders.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Electrochemistry
Li Deng, Zhan-Yu Wu, Jin-Hai You, Zu-Wei Yin, Wen-Feng Ren, Peng-Fang Zhang, Bin-Bin Xu, Yao Zhou, Jun-Tao Li
Article
Nanoscience & Nanotechnology
Jie Yu, Yufan Feng, Dan Sun, Wenfeng Ren, Changyou Shao, Runcang Sun
Summary: A novel organogel with cellulose nanofibril reinforcement shows excellent conductivity and mechanical properties, along with antifreezing and antidehydration capabilities, due to the combination of sorbitol and CaCl2 for solvent displacement.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Electrochemistry
Ting-Ting Su, Wen-Feng Ren, Ke Wang, Jiang-Meng Yuan, Chang-You Shao, Ji-Liang Ma, Xiao-Hong Chen, Ling-Ping Xiao, Run-Cang Sun
Summary: The research developed three-dimensional polymeric binders with multiple hydrogen bonds to accommodate the huge volume change of Si anodes during lithiation and delithiation processes, improving the electrochemical properties of Si-based materials.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Ting-Ting Su, Jia-Bo Le, Wen-Feng Ren, Shao-Jian Zhang, Jiang-Meng Yuan, Ke Wang, Chang-You Shao, Jun-Tao Li, Shi-Gang Sun, Run-Cang Sun
Summary: By covering the metallic Li surface with CMC/SN polymer layers, this study effectively controls the growth of Li and stabilizes the interface, leading to suppression of Li dendrite formation and improvement in the cycling stability of Li electrodes.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Jiang-Meng Yuan, Wen-Feng Ren, Ke Wang, Ting-Ting Su, Gao-Jie Jiao, Chang-You Shao, Ling-Ping Xiao, Run-Cang Sun
Summary: This study designed and synthesized three-dimensional lignin-polyacrylic acid copolymeric binders with ultrahigh elasticity, which can be applied in lithium-ion batteries, especially showing good performance for silicon-based electrodes.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Ke Wang, Jia-Bo Le, Shao-Jian Zhang, Wen-Feng Ren, Jiang-Meng Yuan, Ting-Ting Su, Bing-Yu Chi, Chang-You Shao, Run-Cang Sun
Summary: This study demonstrates the use of renewable polymers as a surface coating layer to protect zinc anodes in zinc-iodine batteries, effectively suppressing triiodide ion shuttling and zinc dendrite formation. The results show that the introduction of renewable polymers significantly improves the stability and cycle life of the batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Dan Sun, Yufan Feng, Shaochao Sun, Jie Yu, Siyu Jia, Chao Dang, Xiang Hao, Jun Yang, Wenfeng Ren, Runcang Sun, Changyou Shao, Feng Peng
Summary: This study designs a facile and universal self-catalytic system based on alkali lignin to fabricate conductive and transparent organohydrogels. The organohydrogels exhibit extreme environment applicability, eligible stretchability, and robust self-adhesion. They can be used to construct triboelectric nanogenerators for mechanical energy harvesting and converting, as well as for applications in commercial electronics and human movement monitoring.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Environmental
Yufan Feng, Jie Yu, Dan Sun, Wenfeng Ren, Changyou Shao, Runcang Sun
Summary: The article introduces the development of lignin-based nanocomposite organogels with extreme temperature tolerance and long-lasting moisture, improving mechanical properties and preventing freezing and evaporation issues through the use of a binary-solvent system. These organogels have wide applications and can be used to prepare flexible strain sensors, among other uses.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Ting-Ting Su, Wen-Feng Ren, Jiang-Meng Yuan, Ke Wang, Bing-Yu Chi, Run-Cang Sun
Summary: This study designs and develops a three-dimensional networked composite binder to improve the cyclic stability of silicon anodes. The composite binder shows stable cyclic performance when used in silicon nanoparticles.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Energy & Fuels
Jiang-Meng Yuan, Hang Li, Ling-Ping Xiao, Ti-Peng Wang, Wen-Feng Ren, Qiang Lu, Run-Cang Sun
Summary: Understanding the structure activity relationships of lignin is important for its thermochemical conversion. This study characterized lignins from different sources and evaluated their activities in fast pyrolysis. The results showed that herbaceous lignins produced more phenolic compounds, indicating the efficient cleavage of C-O linkages in these lignins.
Article
Chemistry, Physical
Ting-Ting Su, Ke Wang, Bing-Yu Chi, Wen-Feng Ren, Run-Cang Sun
Summary: In this study, stripy zinc array electrodes with preferential crystal plane were successfully designed and fabricated through a simple treatment with concentrated phosphoric acid. The electrode exhibited excellent electrochemical performance, achieving ultra-long lifespan and stable cycling by increasing the electroactive surface area, suppressing corrosion and hydrogen evolution, inducing horizontal growth, and inhibiting dendrite formation. This research provides a simple and effective strategy for improving the performance of metallic zinc anodes and promoting the commercial application of zinc ion batteries.
Article
Materials Science, Multidisciplinary
Dongnv Jin, Gaojie Jiao, Wenfeng Ren, Jinghui Zhou, Jiliang Ma, Runcang Sun
Summary: This study successfully developed a novel photocatalyst, which efficiently and rapidly converted biomass-derived feedstocks into lactic acid by gradually transforming copper oxide species into copper and Cu2O. The obtained photocatalyst exhibited excellent stability and reusability, and its practicality was demonstrated in a laboratory-scale experiment.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
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)