Article
Electrochemistry
Mohammad Said El Halimi, Federico Poli, Nicola Mancuso, Alessandro Olivieri, Edoardo Jun Mattioli, Matteo Calvaresi, Tarik Chafik, Alberto Zanelli, Francesca Soavi
Summary: The exponentially growing market of electrochemical energy storage devices necessitates the substitution of flammable, volatile, and toxic electrolytes. The use of Water in salt solutions (WiSE) as a green electrolyte with high safety, low cost, wide electrochemical stability, and high ionic conductivity is of interest. A comprehensive study on circumneutral WiSE based on ammonium acetate has been conducted, focusing on various properties and the effect of factors such as pH, density, viscosity, conductivity, and salt concentration on its performance.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Yuanjun Zhao, Yanyang Qin, Xinyu Da, Xianjun Weng, Yiyang Gao, Guoxin Gao, Yaqiong Su, Shujiang Ding
Summary: In this study, a high lithium salt content PVDF-based SCPE was developed and enhanced with h-BN nanosheets, resulting in high ionic conductivity, wide electrochemical stability window, and strong mechanical strength. The lithium batteries using this SCPE showed high reversible capacity, long-term cycle stability, and high-rate performance, indicating potential for solid-state lithium batteries.
Article
Polymer Science
Jihae Han, Mayu Osugi, Namie Ikeda, Kenta Fujii
Summary: In this study, a lithium salt-concentrated organogel was prepared via one-step gelation. The organogel exhibited efficient polymer network formation and good electrochemical properties, making it a promising quasi-solid electrolyte material for lithium-ion capacitors.
Article
Chemistry, Physical
Dong Ding, Yuta Maeyoshi, Masaaki Kubota, Jungo Wakasugi, Kiyoshi Kanamura, Hidetoshi Abe
Summary: The study introduces a super-concentrated polymer in solvated ionic liquid that enhances the ionic conductivity of PEO-based polymer electrolytes, demonstrating promising electrochemical performance in polymer lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Polymer Science
Jacqueline A. Maslyn, Louise Frenck, Vijay D. Veeraraghavan, Alexander Muller, Alec S. Ho, Nandan Marwaha, Whitney S. Loo, Dilworth Y. Parkinson, Andrew M. Minor, Nitash P. Balsara
Summary: The study shows that the limiting current density in composite electrolytes increases with the volume fraction of the PEO block. Using the concentrated solution theory enables accurate predictions of limiting current density, with quantitative agreement between experimental measurements and theoretical predictions.
Article
Nanoscience & Nanotechnology
Haiping Wu, Peiyuan Gao, Hao Jia, Lianfeng Zou, Linchao Zhang, Xia Cao, Mark H. Engelhard, Mark E. Bowden, Michael S. Ding, Jiangtao Hu, Dehong Hu, Sarah D. Burton, Kang Xu, Chongmin Wang, Ji-Guang Zhang, Wu Xu
Summary: The newly developed polymer-in-salt electrolyte (PISE) provides a method to improve the oxidative stability of lithium metal polymer batteries (LMPBs) while maintaining high charge capacity. The solid-state PISEs prepared with a special process exhibit excellent performance, offering a promising pathway towards high-voltage stable LMPBs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Rongyu Deng, Fulu Chu, Felix Kwofie, Zengqiang Guan, Jieshuangyang Chen, Feixiang Wu
Summary: The concentration of electrolyte has a significant impact on the performance of rechargeable batteries. Low-concentration electrolytes, composed of common electrolyte components, have been found to enhance the performance of high-voltage Li metal batteries. This is achieved by introducing a fluorine-containing solvent and maintaining a low salt concentration, which results in a LiF-rich and robust solid electrolyte interphase layer.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Lei Wu Tian, Ji Wan Kim, Seung-Bo Hong, Hoon-Hee Ryu, Un-Hyuck Kim, Yang-Kook Sun, Dong-Won Kim
Summary: In this study, a solid hybrid electrolyte composed of a three-dimensional LLZO framework and a polymer electrolyte was synthesized for all-solid-state lithium batteries. The hybrid electrolyte exhibited high ionic conductivity, good mechanical strength, and electrochemical stability. Additionally, the use of a Ni-rich cathode further improved the performance of the all-solid-state lithium batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yingmeng Zhang, Lingxuan Zeng, Zaohui Ding, Wei Wu, Libo Deng, Lei Yao
Summary: In this study, a dual-salt localized high-concentration electrolyte (LHCE) has been optimized to modify the unstable interfacial layers in high-voltage lithium metal batteries (LMBs). The modified interfacial layers on both cathode and anode sides stabilize the high-voltage cathode and high-active Li-metal anode.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Zhi Kang Liu, Jun Guan, Hai Xia Yang, Peng Xiao Sun, Nian Wu Li, Le Yu
Summary: A ternary-salt solid polymer electrolyte (TS-SPE) has been successfully created in this study, which shows high ionic conductivity, high Li+ ion transference number, and stable SEI with low interfacial impedance. It improves the rate performance and long-life stability of Li metal batteries.
CHEMICAL COMMUNICATIONS
(2022)
Article
Electrochemistry
Zach J. Hoffman, Alec S. Ho, Saheli Chakraborty, Nitash P. Balsara
Summary: In this study, the limiting current density of a conventional polymer electrolyte and a single-ion-conducting polymer electrolyte was measured using a new method. The results indicate that the limiting current density of the conventional electrolyte is inversely proportional to electrolyte thickness, while the limiting current density of the single-ion-conducting electrolyte is independent of thickness.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Engineering, Chemical
Yong Zhang, Liping Yu, Jirong Wang, Shaoqiao Li, Huihui Gan, Zhigang Xue
Summary: The cellulose-based polymer electrolyte fabricated through Li salt-induced surface-initiated polymerization shows high ionic conductivity, good thermal stability, and wide electrochemical stability window, demonstrating promising performance in high-performance Li metal batteries.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Meng-Xuan Yu, Zhen-Yi Gu, Jin-Zhi Guo, Chun-Gang Wang, Xing-Long Wu
Summary: All-solid-state hybrid-ion batteries with a synergistic Na+/Li+ de/intercalation mechanism were designed and assembled using modified PEO-based solid polymer electrolyte, Na2V2(PO4)(2)O2F cathode, and Li metal anode. The batteries exhibited a high average working voltage and energy density, providing a new avenue for the development of high-safety and low-cost secondary batteries.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Qi Xia, Jinlong Hu, Qingqing Chen, Lingzhi Zhang
Summary: NS-K-PC, designed as a Se host, demonstrates excellent performance in the cathode, including high reversible capacity, superior rate capacity, and great cycling stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Electrochemistry
Wei Tan, Yoichi Tominaga
Summary: Despite the significant improvement in the performance of all-solid-state batteries in recent decades, the lack of understanding of their working mechanism remains a hindrance in many studies and in enhancing the properties and performance of solid polymer electrolytes (SPE). Molecular dynamics simulations were conducted to investigate the solvation structure in concentrated poly (ethylene carbonate) (PEC) electrolytes and to enhance their ionic conduction. The competitive effect induced by the interactions between Li cations and TFSI anions was found to replace the main coordination of C=O groups in PEC chains and enhance segmental motion. The calculations of total coordination number in the electrolytes indicated that the release of Li cations from the coordinating bonds would increase the transport number with the increase in salt concentration.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Louise Frenck, Vijay D. Veeraraghavan, Jacqueline A. Maslyn, Alexander Muller, Alec S. Ho, Whitney S. Loo, Andrew M. Minor, Nitash P. Balsara
SOLID STATE IONICS
(2020)
Article
Polymer Science
Jacqueline A. Maslyn, Louise Frenck, Vijay D. Veeraraghavan, Alexander Muller, Alec S. Ho, Nandan Marwaha, Whitney S. Loo, Dilworth Y. Parkinson, Andrew M. Minor, Nitash P. Balsara
Summary: The study shows that the limiting current density in composite electrolytes increases with the volume fraction of the PEO block. Using the concentrated solution theory enables accurate predictions of limiting current density, with quantitative agreement between experimental measurements and theoretical predictions.
Article
Nanoscience & Nanotechnology
Vijay D. Veeraraghavan, Louise Frenck, Jacqueline A. Maslyn, Whitney S. Loo, Dilworth Y. Parkinson, Nitash P. Balsara
Summary: The study utilized hard X-ray microtomography to investigate the electrodeposition of metallic lithium in a rigid block copolymer electrolyte, and quantified the growth behavior of lithium protrusions based on their simple ellipsoidal globule geometry.
ACS APPLIED MATERIALS & INTERFACES
(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)