Article
Electrochemistry
Hyungeun Seo, Dahye Park, Jae-Hun Kim
Summary: In this study, a Si-Zn2SiO4 composite was designed and prepared by mechanical milling and heat treatment. The composite electrode showed a high reversible capacity without carbon incorporation, and exhibited stable cycling performance, which was attributed to the role of Zn2SiO4 in buffering the volume change of Si.
ELECTROCHEMISTRY COMMUNICATIONS
(2022)
Review
Electrochemistry
Shaowen Dong, Li Wang, Xiaolong Huang, Jie Liang, Xiangming He
Summary: The research of phosphorus-based anode materials is significant due to their high theoretical capacity, natural abundance, and environmental friendliness. This review summarizes the recent progress in red phosphorus-based, black phosphorus-based, and transition metal phosphide-based anode materials for lithium-ion batteries and sodium-ion batteries. The features, preparation methods, advantages/disadvantages, and electrochemical storage mechanism of phosphorus-based materials are introduced. Improvement strategies for phosphorus-based anode materials are also proposed, along with future directions for research. The paper aims to advance knowledge and provide recommendations for the use of phosphorus-based anode materials in batteries.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Physical
Chengke Wu, Jiaqian Zheng, Jing Li, Tingyi Jin, Fuquan Wang, Quanmin Li, Mingxing Chen, Jing Qi, Shuyan Gao, Enbo Shangguan
Summary: High-performance Fe3S4@reduced graphene oxide (rGO) composite has been successfully synthesized as a novel anode material for alkaline rechargeable batteries via a facile hydrothermal method. The Fe3S4@(10%)rGO composite demonstrates excellent high-rate capability and cycling stability at different rates. The addition of rGO and its high sulfur content contribute to improved battery performance by enhancing charge transportation speed and reversibility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Adele Birrozzi, Angelo Mullaliu, Tobias Eisenmann, Jakob Asenbauer, Thomas Diemant, Dorin Geiger, Ute Kaiser, Danilo Oliveira de Souza, Thomas E. Ashton, Alexandra R. Groves, Jawwad A. Darr, Stefano Passerini, Dominic Bresser
Summary: The incorporation of transition metals, such as Co, Fe, and Mn, into SnO2 significantly improves the reversibility of the conversion and alloying reaction in lithium-ion batteries, particularly when multiple dopants are introduced. Here, we report a detailed characterization of Co and Mn co-doped SnO2 using transmission electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction. In-depth investigations of the crystal structure and dopant distribution, along with ex situ X-ray photoelectron spectroscopy and X-ray absorption spectroscopy, help better understand the de-/lithiation mechanism and the synergistic impact of Co and Mn co-doping.
Article
Nanoscience & Nanotechnology
Julian J. A. Kreissl, Jan Petit, Raika Oppermann, Pascal Cop, Tobias Gerber, Martin Joos, Michael Abert, Jens Tuebke, Kohei Miyazaki, Takeshi Abe, Daniel Schroeder
Summary: Active materials like ZnO show promise as a replacement for graphite anodes in lithium-ion batteries, offering high lithium-ion diffusion and rapid reaction kinetics. However, research on the reaction mechanisms and solid electrolyte interphase formation in ZnO remains contradictory and limited. This study presents findings on lithiation, delithiation, and SEI formation with ZnO in ether-based electrolytes, clarifying the misunderstanding of the reaction mechanism and revealing simultaneous conversion and alloy reactions in the electrode bulk, as well as the formation of a double-layered SEI on the surface.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Dong Wang, Gaohui Du, Di Han, Qingmei Su, Shukai Ding, Miao Zhang, Wenqi Zhao, Bingshe Xu
Summary: Bramble-like NaVMoO6/C nanofibers with remarkable lithium-storage property were fabricated through a simple electrospinning method. The resulting nanocomposite with unique architecture showed advantages such as enhanced surface-to-volume ratio, reduced ion transport lengths, and strengthened electron transfer. As a new type of anode material for LIBs, NaVMoO6/C composite exhibited stable capacity at different current densities, showcasing high reversible capacity even at high rates.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Siliang Chang, Shuai Han, Sen Ji, Shanshan Liu, Ye Liu, Xin Yang, Kai Feng, Jianjiang Hu
Summary: Niobium-based anode materials show promise for use in lithium-ion batteries due to their high specific capacity and safety. However, their low electronic conductivity limits their performance. In this study, a mixed-valent niobium-based phosphate, K3Nb6P4O26@C, was developed as an anode material. The mixed-valent Nb in KNPO enables multi-electron reactions and higher electronic conductivity. The 3D channels in the crystal structure of KNPO facilitate rapid lithium-ion transport. KNPO@C anode demonstrates a high specific capacity and excellent cycling stability, making it a potential practical material for high-performance LIBs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Junyang Hu, Huwei Wang, Shuwei Wang, Yu Lei, Lei Qin, Xiaojing Li, Dengyun Zhai, Baohua Li, Feiyu Kang
Summary: Research shows that the deposition mechanism of sodium and potassium in metal batteries differs from that of lithium, resulting in the formation of micrometer-scale granules, which may cause short circuits in the battery.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Wenxu Shang, Wentao Yu, Xu Xiao, Yanyi Ma, Peng Tan, Meng Ni
Summary: This study aims to improve the electrochemical performance of Zn-Co batteries by substituting Ni on the Co3O4 electrode, constructing a novel nanowire-nanosheet structure with high electric conductivity and good valence change-ability. The substituted electrode shows high capacity, energy density, and rate performance, as well as good cycle stability. The role of Ni substitution in capacity decay is investigated, revealing mechanisms such as decreased low valence species and microstructure collapse.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Yong Cheng, Bingbing Chen, Limin Chang, Dongyu Zhang, Chunli Wang, Shaohua Wang, Ping Nie, Limin Wang
Summary: Anode materials based on SnO2 have attracted attention due to their high capacity and relatively mild voltage platforms. However, their practical application is challenging due to low initial Coulombic efficiency and poor stability. Recent research has shown that compositing carbon or metal particles with SnO2 can achieve high alkaline-ion storages. In this work, a unique Co-NC shell derived from ZIF-67 is introduced to accelerate the conversion reaction between SnO2 and Sn phases, improving the efficiency and stability of the electrode material.
Article
Electrochemistry
Albina Glibo, Nicolas Eshraghi, Yuri Surace, Andreas Mautner, Hans Flandorfer, Damian M. Cupid
Summary: Phase pure SnS and SnS2 were synthesized and characterized using various physio-chemical techniques. The electrochemical properties of SnS and SnS2 as anode materials for lithium-ion batteries were investigated. SnS2 electrodes showed superior cycling performance compared to SnS electrodes due to the production of more Li2S during the conversion reaction and the finer distribution of Li2S within the electroactive material.
ELECTROCHIMICA ACTA
(2023)
Article
Nanoscience & Nanotechnology
Xiaoyang Chen, Youlong Fang, Jiyu Tian, Haiyan Lu, Xinping Ai, Hanxi Yang, Yuliang Cao
Summary: Hard carbon as an anode material for sodium-ion batteries has a different sodium-storage mechanism compared to graphite, where it operates through the intercalation of Na+ into the graphitic layers to form sodium-graphite intercalation compounds. This insight may help in designing better HC materials for high-energy density SIBs.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Qiangqiang Feng, Yanyan Liu, Jitong Yan, Wei Feng, Shaozheng Ji, Yongfu Tang
Summary: This study demonstrated a promising aqueous aluminum ion battery utilizing a novel K2Ti8O17 anode, which exhibited excellent performance and cycling stability in the aqueous electrolyte. The introduction of NaAc enhanced the cycling stability of the battery, leading to high discharge voltage and capacity. Investigation using ICP-OES, HRTEM, and XANES revealed the intercalation/deintercalation mechanism of Na+/Al3+ ions in the aqueous AIB, providing insights into the charge-discharge mechanism of K2Ti8O17 anode.
Article
Chemistry, Physical
Jeong Keun Ko, Jae Hyeon Jo, Hee Jae Kim, Jae Sang Park, Hitoshi Yashiro, Natalia Voronina, Seung-Taek Myung
Summary: A Bi2Te3 composite modified by nanosized carbon is reported to enhance reversible capacity and long cycling stability. The electrode retains over 79.8% of initial capacity after 500 cycles at high current. Reaction chemistry behind the acceptable performance is unveiled using advanced techniques.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Bo Fan, Zebo Guan, Hongjiao Wang, Lilin Wu, Wenzhi Li, Shibang Zhang, Bai Xue
Summary: This study quantitatively investigated the evolution of electrochemical impedance spectra of all-solid-state lithium-sulfur batteries, revealing the characteristics of different interfaces and dynamic processes within the battery. The analysis of impedance spectra indicated that Li diffusion plays a significant role in charge transfer within the active materials.
SOLID STATE IONICS
(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)