Article
Chemistry, Physical
Yao Zhang, Chaoye Zhu, Zhihong Ma
Summary: Silicon has been widely accepted as a promising anode material for new-generation lithium-ion batteries due to its high lithium storage density and abundant mineral resources. This study proposed a simple and environmentally friendly method to prepare a Si-Cu3Si composite with coherent phase boundaries, which significantly improves the cyclic stability of silicon anodes. The effects of morphology, composition, and structure on the electrochemical performance of the nano-sized Si@Cu3Si anode were clarified through various analyses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Analytical
Bo -Han Zhang, Wan-Xin Wen, Hua-Ying Wang, Yun-Lei Hou, Jing-Zhou Chen, Dong-Lin Zhao
Summary: A novel core-shell structured Si@Cu3Si-Cu@NC nanocomposite anode material has been designed and synthesized. The material exhibits excellent performance in lithium-ion batteries, with high specific capacity and good cycling stability.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Puhua Ouyang, Chenxin Jin, Guojun Xu, Xixi Yang, Bobo Liu, Jianglei Dan, Jun Chen, Zhihao Yue, Xiaomin Li, Fugen Sun, Xilian Sun, Lang Zhou
Summary: Commercial graphite anode materials with low theoretical specific capacity cannot meet the demand for high energy density lithium-ion batteries. Silicon monoxide (SiOx, 0 < x < 2) has the potential to be used as the next generation anode material due to its high theoretical specific capacity and safety. The SiOx/Cu3Si/Cu composite material synthesized in this study showed significantly improved discharge specific capacity and cycling performance compared to pure SiOx.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Lei Liu, Xing Gao, Xuemei Cui, Bofeng Wang, Fangzheng Hu, Tianheng Yuan, Jianhua Li, Lei Zu, Huiqin Lian, Xiuguo Cui
Summary: Fibrous red phosphorus with improved electrical conductivity and a special structure was prepared by chemical vapor transport. When compounded with graphite, the composite material exhibited high reversible specific capacity, excellent high-rate performance, and long cycle life.
Article
Chemistry, Physical
Hao Li, Zidong Chen, Zhirong Kang, Wei Liu, Yungui Chen
Summary: This study presents stuffed high-density Si-C particles that are crack-resistant and exhibit highly reversible Li-storage performances. The particles consist of Si particles implanted into a dual-layered carbon matrix, allowing an intraparticle on-site voiding mechanism to prevent cracking and swelling. The resulting Si-C particles possess high density and low surface area, delivering improved capacity retention and energy density when paired with LiFePO4 cathodes.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Zhiwen Wang, Dong Cao, Mingxi Ren, Hanning Zhang, Limei Pan, Chuanfang John Zhang, Jian Yang
Summary: A Si@Ti3C2Tx composite with a fluffy and porous structure was prepared using a simple suspension mixing-freeze drying process, which can effectively improve the stability and cycling efficiency of silicon nanoparticles in lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Li Zeng, Hongxue Xi, Xingang Liu, Chuhong Zhang
Summary: Silicon/carbon nanofibers with a core-shell structure were successfully fabricated using a coaxial electrospinning technique, exhibiting excellent electrochemical performance, high electrical conductivity, and structural stability, showing great potential for advanced flexible energy storage.
Article
Electrochemistry
Xiaohua Huang, Renqing Guo, Yan Lin, Yiqi Cao, Jianbo Wu
Summary: Si/SiC/C in-situ composite microspindles were fabricated using Zn2SiO4/C nanowire bundles obtained from hydrothermal synthesis and magnesiothermic reduction. SiC and C components were uniformly distributed at the nanoscale level within the microspindle particle, strengthening the structure. As an anode material for lithium-ion batteries, the Si/SiC/C composite microspindles exhibited excellent cyclic and rate performances, outperforming pure Si microspindles.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Yaxiong Yang, Shugang Liu, Zhe Dong, Zhenguo Huang, Cheng Lu, Yongjun Wu, Mingxia Gao, Yongfeng Liu, Hongge Pan
Summary: This study demonstrates an effective hierarchical conformal coating strategy for high-performance microsized Si anodes, which enhances mechanical properties, promotes ionic diffusion, stabilizes electrode/electrolyte interfaces, and increases electronic conductivity. The optimized structure achieves high reversible capacity, cycling stability, and rate capability.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
Moustafa M. S. Sanad, Arafat Toghan
Summary: A highly efficient LiNbO3 (LNO) perovskite anode material was successfully prepared and chemically activated via acid treatment, leading to significant improvement in electrode performance. The chemical activation process resulted in changes in lattice parameters, cell volumes, and crystallite size of LNO, as well as confirmed improved electronic connectivity for the bulk electrode material. Galvanostatic cycling and rate capability tests demonstrated enhanced specific discharge capacity and capacity retention, along with reduced charge transfer resistance and improved Li+ ions conductivity after chemical activation of LNO anode.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Zeyu Zhang, Shixiong Sun, Wen Zhang, Jia Xu, Xin Wang, Chun Fang, Qing Li, Jiantao Han
Summary: A watermelon-like core-buffer-shell Si/electrochemically exfoliated graphene/C (Si/EG/C) composite was prepared using ball milling and spray drying. The composite exhibited excellent electrochemical performance due to the presence of folds and voids in the graphene layer, which buffered the volume fluctuations of the silicon core and facilitated fast lithium ion transport. It has potential applications in the next generation of Li-ion batteries.
SCIENCE CHINA-MATERIALS
(2022)
Article
Energy & Fuels
Jianhang Yang, Rizwan Ur Rehman Sagar, Tauseef Anwar, Xiaocheng Li, Zhang Qian, Tongxiang Liang
Summary: The study focuses on the synthesis of graphene foam as anode material using the CVD method, and its stable performance in coin-cell lithium-ion batteries with a high specific capacity at 0.1 C. The research shows that the GF-anode exhibits stable performance in charge-discharge cycles with high specific capacity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Junying Zhang, Zhi-Ling Hou, Xiaoming Zhang, Chuanbo Li
Summary: In this study, Si@Cu composite anode material prepared by magnetron sputtering method showed enhanced electrochemical performance for lithium-ion batteries. The introduction of Cu component and carbon layer improved conductivity and cyclic performance of the electrode. The preparation methods are mass-productive and the magnetron sputtering method has broad application prospects.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Hongmei Song, Xinyue Zhang, Junxiang Ye, Yin Yang, Dong Sun, Chenggen Xu, Rundan Lin, Xilu Zhang, Menglin Zhang, Simeng Li, Jinsen Gao, Jun Xu, Xinlong Ma, Yongfeng Li
Summary: A scalable fluidized chemical vapor deposition (FCVD) methodology is developed to prepare Si nanoparticles coated with graphene (Si@G), which avoids uneven coating of present coating technologies. The Si@G shows extraordinary electrode properties of capacity and cyclability due to the thin and uniform carbon layers striking a balance between suppressing volume expansion and increasing Li' diffusion rate. The Si@G/graphite composite affords a high capacity and capacity retention, and the LFP//Si@G/graphite full cell possesses an ultrahigh energy density, indicating practical commercial application of Si@G.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Zhuqing Zhao, Muya Cai, Yan Zhao, Hongwei Xie, Yan Xin Zhuang, Huayi Yin
Summary: The choice of SiO2 precursor is crucial for the design and synthesis of nanostructured Si materials with enhanced Li-storage performance. This study explores the effects of various SiO2 precursors on the zincothermic reduction process for preparing nanostructured Si spheres. It is found that the size and structure of SiO2 precursors significantly influence the reduction process, with nano-SiO2 and bio-SiO2 (such as SiO2 derived from rice husk and bamboo leaves) successfully reduced to Si spheres. In addition, the prepared hollow Si spheres show good electrochemical performance as anode materials for lithium-ion batteries.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shang-Chieh Hou, Tsan-Yao Chen, Yu-Hsien Wu, Hung-Yuan Chen, Xin-Dian Lin, Wing-Keong Liew, Chia-Chin Chang, Jow-Lay Huang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Chemistry, Physical
Shao-Chieh Weng, Sanjaya Brahma, Po-Chia Huang, Yong-Cun Huang, Yu-Hsuan Lee, Chia-Chin Chang, Jow-Lay Huang
APPLIED SURFACE SCIENCE
(2020)
Article
Chemistry, Physical
Yi-Zhu Wu, Sanjaya Brahma, Shao-Chieh Weng, Chia-Chin Chang, Jow-Lay Huang
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Multidisciplinary
Chun-Ming Wu, Lakshmanan Saravanan, Hung-Yuan Chen, Ping- Pan, Cheng-Si Tsao, Chia-Chin Chang
Summary: The study successfully demonstrated the investigation of relative solid electrolyte interphase (SEI) film thickness on graphite electrodes in lithium-ion batteries using small-angle neutron scattering technique. The results showed that the thickness of SEI film formed on graphite electrodes is influenced by lithium ion insertion, which in turn impacts battery performance.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Bo-Xun Chen, Sanjaya Brahma, Yu-Qi Chen, Po-Chia Huang, Chia-Chin Chang, Jow-Lay Huang
Summary: It was found that the use of methylboronic acid MIDA ester as an electrolyte additive can effectively enhance the electrochemical and material properties of LNCAO cathode. The additive improves the capacity, cyclic stability, and coulombic efficiency of the cathode, and inhibits the decomposition of the electrolyte.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Chusnul Khotimah, Fu-Ming Wang, Margret Wohlfahrt-Mehrens, Jeng-Kuei Chang, Jeng-Yu Lin, Chia-Chin Chang, Rio Akbar Yuwono, Sylvia Ayu Pradanawati, Nan-Hung Yeh, Chun-Chuan Hsu, Pei-Wan Lester Tiong, Jeng-Lung Chen, Shu-Chih Haw, Chih-Wen Pao, Chi-Liang Chen, Jyh-Fu Lee, Ting-Shan Chan, Hwo-Shuenn Sheu, Jin-Ming Chen, Alagar Ramar
Summary: This study investigates the effects of different morphologies of LNMO primary particles on the electrochemical performance. Rectangular-shaped LNMO with higher surface energy exhibits stable electrochemical reaction and excellent performance, while pentahedron-shaped LNMO with lower surface energy causes gas evolution and loss in cycle retention. The addition of a lithium salt additive can regulate the valence states of Ni and Mn ions, leading to improved electrochemical performance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
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)