Article
Electrochemistry
James Sturman, Yong Zhang, Chae-Ho Yim, Svetlana Niketic, Mathieu Toupin, Elena A. Baranova, Yaser Abu-Lebdeh
Summary: Silicon nanoparticles coated with a layer of Li4Ti5O12 (LTO) ceramic using a water-based sodium alginate binder show improved battery performance when combined with graphite. The composite electrodes exhibit high initial capacity and good capacity retention, outperforming other silicon composites. Si@LTO + graphite composites are a promising solution for stable and high-energy-density lithium-ion batteries with silicon integration.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Electrochemistry
Xinlong Li, Xinlin Huang, Yuanzhi Chen, Jie Mei, Wanjie Xu, Laisen Wang, Dong-Liang Peng
Summary: The study demonstrated the preparation of monodisperse spinel Li4Ti5O12 (LTO) particles coated with a carbon layer through a solid-phase sintering reaction, which can enhance the rate performances of batteries.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Ceramics
Yangyang Wang, Zeliang Qiu, Guilin Yan, Wentao Zhang, Fei Yuan
Summary: By controlling the introduction content of Si3N4 in Li4Ti5O12/Si3N4 composites, the morphology and electrochemical performance of the battery can be improved, showing potential for application in lithium-ion batteries.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Xiaokang Xu, Yimeng Zhou, Hairui You, Huihua Min, Xinyuan Wu, Weidong Zang, Junwei Hao, Zengkai Feng, Xiaomin Liu, Hui Yang
Summary: NiS2 is a potential anode alternative for LIBs with high theoretical capacity, low cost, and good reversibility. The hollow spherical NiS2/C-M prepared through the MOF template construction exhibits high reversible capacity, excellent rate capability, and long cycle life due to its larger surface area, more active sites, and improved conductivity. This study sheds light on the development of high-capacity anode materials for LIBs.
APPLIED SURFACE SCIENCE
(2022)
Review
Electrochemistry
Yao Liu, Wei Li, Yongyao Xia
Summary: While carbon, oxide, and silicon-based materials have limitations in current LIB applications, polyanionic compounds have gained attention for their ability to stabilize structures, adjust redox couples, and provide migration channels for guest ions, leading to electrode materials with long-term cycling, high energy density, and outstanding rate capability.
ELECTROCHEMICAL ENERGY REVIEWS
(2021)
Article
Nanoscience & Nanotechnology
Yun Xu, Shan Fang, Maider Zarrabeitia, Matthias Kuenzel, Dorin Geiger, Ute Kaiser, Stefano Passerini, Dominic Bresser
Summary: This study investigates the effect of ball milling speed on the effectiveness of phosphoric acid as a slurry additive for lithium transition metal oxide electrodes. The results show that at higher ball milling speeds, beneficial rod-shaped lithium phosphate particles are formed, leading to improved electrochemical performance and long-term cycling stability in lithium ion cells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Electrochemistry
Yun Xu, Angelo Mullaliu, Shawn D. Lin, Yanjiao Ma, Jakob Asenbauer, Maider Zarrabeitia, Stefano Passerini, Dominic Bresser
Summary: This study comprehensively investigates the addition of phosphoric acid to aqueous electrode slurries and finds that it can effectively suppress corrosion issues and improve the electrochemical performance.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Hechun Wei, Wei Huang, Ketong Luo, Yanqun Huang, Shengkui Zhong, Dongliang Yan
Summary: Hollow Ni0.75Zn0.25Fe2O4 nanospheres with PVP-assisted hydrothermal strategy were successfully fabricated and displayed good dispersibility and high specific surface area. The nanospheres also demonstrated satisfactory cycle life and rate performance as a lithium ion battery negative electrode.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Ping Zhong, Kun Wang, Xingchao Wang, Zhenjiang Lu, Jing Xie, Yali Cao
Summary: In this work, a facile self-template strategy was used to fabricate hollow porous nitrogen-doped carbon embedded with ultrafine Co nanoparticles, which exhibited excellent cycling stability and remarkable rate performance as an anode material for lithium-ion batteries. The unique design of the structure provides large surface areas, adequate internal void space, and short ion transport channels, making it a prospective material for stable, safe, and high capacity lithium storage.
Article
Chemistry, Physical
Huaiyang Chen, Xiaoping Shen, Zhenyuan Ji, Jia Cheng, Guangxiang Liu, Leiming Lang, Yao Chen
Summary: In this paper, porous Mn3O4-Fe3O4 nanoparticles are anchored on reduced graphene oxide (rGO) nanosheets to form Mn3O4-Fe3O4/rGO composites. The composites exhibit superior electrochemical lithium storage performances, including high reversible capacity, good rate capability, and strong long-term cycle stability. The study demonstrates that graphene not only provides conductivity, but also mitigates volume expansion and prevents nanoparticle aggregation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Lele Wang, Yuzhi Jiao, Zhijun Qiao, Jun Qin, Yuzuo Wang, Dianbo Ruan
Summary: The spray drying method combined with solid-state calcination was used to prepare Li4Ti5O12 @LiAlO2 (LTO@LAO) composite anode electrode materials with micro and nano spherical structures. The LTO@LAO composite exhibited excellent specific capacity, rate capability, and cycling stability, making it an excellent candidate for high-power devices and energy storage systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Tao Liu, Borong Wu, Yuanxing Zhang, Daobin Mu, Ning Li, Yuefeng Su, Ling Zhang, Qi Liu, Feng Wu
Summary: Silicon-based materials face challenges in volume expansion and poor conductivity during charge and discharge processes. This study demonstrates the potential of a hierarchical buffer structure, nano-hollow SiOx@C, formed by coating carboxymethyl chitosan (CMCS) on nano silicon and hollow silicon dioxide (H-SiO2). The hollow H-SiO2 mitigates volume expansion, while the CMCS carbon layer with N-doping regulates silicon's expansion and enhances conductivity. The prepared SiOx@C material exhibits promising performance with an initial discharge capacity of 985.4 mAh g(-1) and a low decay rate of 0.27% per cycle in 150 cycles at a current density of 0.2 A g(-1).
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Monika Michalska, Jiri Pavlovsky, Pavlina Peikertova, Sylva Holesova, Krishnan Shanmugam Anuratha, Jeng-Yu Lin
Summary: A modified sol-gel method was used to synthesize a nanocrystalline composite as an efficient anode material for lithium-ion batteries. The composite exhibited a mesoporous/microporous microstructure and showed improved electrochemical performance, especially at high C rates.
SOLID STATE IONICS
(2022)
Article
Materials Science, Multidisciplinary
Sheeraz Ashraf, Rimsha Mehek, Naseem Iqbal, Tayyaba Noor, Ghulam Ali, Abdul Wahab, Ahmed A. Qayyum, Awais Ahmad
Summary: The study showed that the composite of SnO2 with nanoporous carbon (Co-Sn@NC) synthesized using ZIF-67 exhibited enhanced structural stability and improved rate capacity for tin-based compounds. The research revealed that among the composites prepared with three different molar ratios of 2-methylimdazole, the carbon-based Co-Sn alloy with the highest amount of N-doped organic linker delivered the highest reversible capacity.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Congli Wang, Hongfang Jiu, Lixin Zhang, Ruijia Xu, Sicong Che, Zhixin Guo, Yuxin Han, Jinfeng Ma, Hui Li, Fengbo Guo
Summary: NiS@C/Ti3C2 composite material was successfully synthesized by in situ growth-sulfuration-pyrolysis strategies. As a lithium-ion battery anode, it exhibited excellent discharge capacity and cycle stability. The remarkable performances were mainly attributed to the carbon matrix, sulfuration-produced hollow structure, porous carbon matrix, and high-conductive Ti3C2 nanosheets. This work provides insights into the design of transition metal sulfides anchored at Ti3C2 nanosheets for LIBs anode.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
