Article
Nanoscience & Nanotechnology
Chao Zou, Yun Huang, Ling Zhao, Wenhao Ren, Zhixing Zhao, Jiapin Liu, Xing Li, Mingshan Wang, Bingshu Guo, Yuanhua Lin
Summary: This study utilizes branched polyethyleneimine as a functional binder to address the electrode deterioration and capacity decay caused by the dissolution of transition metal ions. The binder can effectively absorb soluble transition metal ions, reduce the loss of active materials, and achieve uniform distribution of key components. This leads to improved rate capability and cycle stability of the battery.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Green & Sustainable Science & Technology
Jake Entwistle, Ruihuan Ge, Kunal Pardikar, Rachel Smith, Denis Cumming
Summary: This study aims to enhance the energy density and charge/discharge speeds of Li-ion batteries by exploring the relationship between electronic conductivity and ion diffusion. Through literature review, the study investigates the existing techniques and methods, as well as the optimal arrangement of CBD and the formation of electrode structures, providing guidance and suggestions for future research.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Nanoscience & Nanotechnology
Yijun Zhong, Chencheng Cao, Moses Oludayo Tade, Zongping Shao
Summary: In this study, a composite anode with metallic lithium, ionically conductive Li3N, and electronically conductive components was developed to decrease the over-potentials in solid-state lithium batteries. The dual conductive phases showed improved electrochemical stability and cycling performance, making them a promising candidate for future Li-containing composite anodes.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Juncheng Qiu, Shuxing Wu, Yajun Yang, Huayan Xiao, Xiujuan Wei, Bingkai Zhang, Kwun Nam Hui, Zhan Lin
Summary: A water-soluble supramolecular binder developed by cross-linking sericin protein and phytic acid was found to improve the volume changes and cycle performance of a lithium-sulfur battery. The battery with the SPPA binder showed a significant performance improvement after 100 cycles compared to batteries with PVDF and SP binders. Additionally, the SP-PA binder in the electrode exhibited excellent flame-retardant performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Ji-Cong Huang, Yui Whei Chen-Yang, Jiunn-Jer Hwang
Summary: In this study, TEOS and MTES were utilized as precursors for the synthesis of silica ionogel electrolytes, combined with the ionic liquid [BMIM-ClO4]. The addition of MTES improved the mechanical strength of the electrolyte and simplified the preparation process. The prepared silica ionogel electrolyte exhibited high ionic conductivity and electrochemical stability, making it a promising candidate for energy storage applications.
Article
Chemistry, Physical
Yushi Fujita, Takashi Hakari, Minako Deguchi, Yusuke Kawasaki, Hirofumi Tsukasaki, Shigeo Mori, Masahiro Tatsumisago, Atsushi Sakuda, Akitoshi Hayashi
Summary: Lithium sulfur batteries are promising due to their high energy densities. This study investigates the charge-discharge mechanism of a Li2S-LiI solid solution in all-solid-state batteries, achieving high reversible capacity. The formation of an ionic conductive structure rich in LiI enables nearly fully solid phase S/Li2S reactions in all-solid-state batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Polymer Science
Fujie Yang, Qingfeng Liu, Wenfei Xie, Pu Xie, Jingqi Shang, Xugang Shu
Summary: Composite solid electrolytes with polymer in ceramic were prepared using lithium aluminum titanium phosphate as a matrix and modified poly(ionic liquid) as a binder. The addition of a poly(ionic liquid)-based binder not only provided flexibility to the solid electrolytes, but also significantly improved their ionic conductivity. The highest ionic conductivity was achieved when the LATP content in the composite solid electrolytes was 50 wt.%. The study also examined the compression resistance of the electrolytes and found that the hardness was highest at a LATP content of 50 wt.%.
Article
Nanoscience & Nanotechnology
Huayan Xiao, Juncheng Qiu, Shuxing Wu, Liangxin Xie, Wenbo Zhou, Xiujuan Wei, Kwun Nam Hui, Ming Zhang, Zhan Lin
Summary: In this study, an aqueous binder called PGA-ECH was used to enhance the performance of SiOx anodes, improving long-term cycling stability. The binder's structure contains abundant functional groups that form strong interactions with the SiOx surface, ensuring good interfacial adhesion. Covalent bonds and supramolecular interactions in the binder guarantee mechanical strength and elasticity. The interactions between lithium ions and the oxygen (nitrogen) atoms of carboxylate (peptide) bonds facilitate the diffusion of lithium ions.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Amin Liu, Shiyue Li, Zhenyu Jiang, Jian Du, Yehan Tao, Jie Lu, Yi Cheng, Haisong Wang
Summary: The research team designed a porous membrane based on cellulose nanofibers and lignosulphonates, which exhibits good flexibility and high ionic conductivity for lithium ion batteries, showing high performance and low cost characteristics.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Haeryung Park, Anh Le Mong, Dukjoon Kim
Summary: In this study, single- and multi-layer flexible composite electrolytes were designed using organic poly(arylene ether sulfone)-g-poly(ethylene glycol) and inorganic Li6PS5Br nanoparticles. Both electrolyte membranes exhibited excellent mechanical flexibility and thermal stability. The multi-layer electrolyte showed high cyclic stability and effective suppression of Li dendrite growth and polysulfide diffusion.
MATERIALS TODAY ENERGY
(2023)
Article
Materials Science, Composites
Chao Gao, Xinping Li, Guijuan Wei, Shoujuan Wang, Xixia Zhao, Fangong Kong
Summary: This article introduces a novel polymer electrolyte (PHLC) with high ionic conductivity and lithium-ion transference number, which improves the electrochemical and cycle stability by addressing the low ionic conductivity issue of solid polymer electrolytes. This research has significant implications for the development of advanced polymer electrolytes.
COMPOSITES COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Yuvaraj Subramanian, Rajesh Rajagopal, Sung Kang, Kwang-Sun Ryu
Summary: This study improved the interface stability of Li-argyrodites through metal and oxygen substitution, and evaluated their structural and electrochemical performances. The results showed that MoO2 substitution can enhance critical current density and ionic conductivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Yanjun Xu, Shengzhao Zhang, Taibo Liang, Zhujun Yao, Xiuli Wang, Changdong Gu, Xinhui Xia, Jiangping Tu
Summary: Researchers have designed a solid-state electrolyte with flexibility and robustness to ensure stable lithium cycling and enhanced ionic conductivity. The electrolyte exhibits outstanding cycling performance in solid-state LiFePO4//Li batteries, with a Young's modulus of up to 1030 MPa, and can work well in harsh environments.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Electrochemistry
Steffen Link, Mario Kurniawan, Anna Dimitrova, Stefan Krischok, Andreas Bund, Svetlozar Ivanov
Summary: The study utilized a porous Cu current collector for a high-performance binder-free silicon anode, showing superior electrochemical performance for Si deposited from SL electrolyte compared to IL electrolyte. Differences in chemical composition were identified as the primary reason for the improved functional properties in the former.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Anh Le Mong, Dukjoon Kim
Summary: The study demonstrates the enhancement of ionic conductivity in solid-state lithium secondary batteries by synthesizing PAES-g-2PEG electrolytes, showcasing excellent mechanical flexibility and thermal stability.
ENERGY STORAGE MATERIALS
(2022)
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)