Article
Chemistry, Multidisciplinary
Hui Li, Hanxi Yang, Xinping Ai
Summary: Lithium-sulfur (Li-S) batteries have been intensively investigated as a post-Li-ion technology, but their energy density and cycling performance are still not satisfactory for commercial development. The gap between laboratory research and industrial application is mainly due to the different requirements of sulfur cathodes and electrolytes in practical batteries. The quasi-solid-state reaction mechanism holds promise for achieving high-capacity and cycle-stable sulfur cathodes.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Kai Pei, So Yeon Kim, Ju Li
Summary: This study demonstrates that thermodynamically stable U-ion and electron insulators can combat challenges in rechargeable solid-state Li metal batteries by blocking the transportation of charge carriers on interfaces, similar to dielectric layers in transistors.
Article
Chemistry, Physical
Dandan Yu, Wei Zhang, Qi Zhang, Shaoming Huang
Summary: The study constructs high-voltage and stable potassium-based dual-ion batteries (KDIBs) with tellurium-decorated carbon nanosheets as the anode and graphite as the cathode, enabled by high-concentration KFSI electrolytes. The use of KFSI electrolyte enhances the capacity and cyclability of the graphite cathode, while avoiding solvent co-intercalation and improving antioxidation and interphase stability. The Te-graphite KDIBs show a high discharge voltage plateau, high capacity after cycles, and high-power densities, providing important insights for electrolyte design in DIBs.
Article
Nanoscience & Nanotechnology
Heng Wang, Yuxiang Li, Ya Tang, Daixin Ye, Ting He, Hongbin Zhao, Jiujun Zhang
Summary: Hf-substituted Li3InCl6 solid electrolytes with low concentration of Hf (0.1<x<0.5) exhibited enhanced ionic conductivity without affecting electrochemical stability. Li2.7In0.7Hf0.3Cl6 showed high ionic conductivity and a wide electrochemical stability window. Solid-state batteries using Li2.7In0.7Hf0.3Cl6 exhibited high discharge capacity and good cycling stability at 25 degrees C.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xin-Bing Cheng, Shi-Jie Yang, Zaichun Liu, Jia-Xin Guo, Feng-Ni Jiang, Feng Jiang, Xiaosong Xiong, Wen-Bo Tang, Hong Yuan, Jia-Qi Huang, Yuping Wu, Qiang Zhang
Summary: This study presents a trisalt electrolyte design to construct a stable inorganics-rich solid electrolyte interphase on the lithium metal anode. The resulting lithium metal batteries exhibit excellent electrochemical performance and thermal stability, leading to extended cycle life and improved safety compared to conventional cells.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xuefeng Zhang, Shuqiang Jiao
Summary: Metal aluminum batteries (MABs) are potential large-scale energy storage devices. Tellurium (Te) is considered a potential positive electrode material for MABs, but its chemical dissolution and subsequent precipitation on bare Al negative electrodes cause poor cycle stability and low discharge capacity. By introducing a TiB2-based modified layer and modified separator technology, the cycling stability and electrochemical performance of the Al-Te battery have been significantly improved.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Article
Polymer Science
Li-Ling Chiu, Sheng-Heng Chung
Summary: In this study, a electrospun polyacrylonitrile film with continuous electrolyte tunnels is used as an effective separator in lithium-sulfur batteries, providing high mechanical strength and stability for lithium stripping and plating reactions. The film also enables high sulfur loadings and superior performance of the polysulfide cathode with long cycle life. This leads to high areal capacities and energy densities in the lithium-sulfur cells.
Article
Nanoscience & Nanotechnology
Yin-Ju Yen, Sheng-Heng Chung
Summary: By adding P2S5 to the Li2S-P2S5 catholyte, two thiophosphates with high ionic conductivities are generated, which improve the activation efficiency and electrochemical utilization. Further investigation reveals that modified Li2S-P2S5 cathodes using carbon black and dilute polysulfide can achieve higher charge-storage capacity and cyclability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Jian Yang, Tianyi Wang, Xin Guo, Xiaoxue Sheng, Jiabao Li, Chengyin Wang, Guoxiu Wang
Summary: This study reports a free-standing and flexible Sb2S3/Ti3C2Tx composite film for high-capacity, fast and stable sodium storage. The hybrid nanostructure of Sb2S3 nanowires anchored between Ti3C2Tx nanosheets enables outstanding rate performance and cyclic stability in the composite anodes. The flexible sodium-ion capacitors using Sb2S3/Ti3C2Tx anodes and active carbon/reduced graphene oxide paper cathodes exhibit superior energy and power densities, as well as excellent cycling performance.
Article
Materials Science, Multidisciplinary
Bingqing Ye, Zhou Cui, Zunxian Yang, Wenbo Wu, Yuliang Ye, Zihong Shen, Yuanqing Zhou, Qiaocan Huang, Songwei Ye, Zhiming Cheng, Hongyi Hong, Zongyi Meng, Zhiwei Zeng, Qianting Lan, Jiaxiang Wang, Ye Chen, Hui Zhang, Tailiang Guo, Yun Ye, Baisheng Sa, Zhenzhen Weng, Yongyi Chen
Summary: A novel 3D hierarchical conductive network architecture was achieved using MoS2 nanotubes, self-assembled ultrathin MoS2 nanosheets, N-doped carbon intercalation, and reduced graphene oxide encapsulation. This architecture exhibited advantages like hollow tubes, ultrathin MoS2 nanosheets, expanded interlayer spacing, and highly conductive rGO wrapping, resulting in improved electrochemical performance of lithium-ion batteries and sodium-ion batteries.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Zhiwei Li, Langyuan Wu, Shengyang Dong, Tiezhu Xu, Shaopeng Li, Yufeng An, Jiangmin Jiang, Xiaogang Zhang
Summary: The pencil drawing technique is employed to improve the performance of Zn anode, hinder dendrite formation, and prevent side reactions in Zinc-ion batteries, leading to low overpotential, high reversibility, and dendrite-free durability.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Xiaowei Chi, Ye Zhan, Fang Hao, Steven Kmiec, Hui Dong, Rong Xu, Kejie Zhao, Qing Ai, Tanguy Terlier, Liang Wang, Lihong Zhao, Liqun Guo, Jun Lou, Huolin L. Xin, Steve W. Martin, Yan Yao
Summary: This study reports a new type of solid electrolyte material for the fabrication of all-solid-state sodium batteries. The electrolyte material exhibits excellent electrochemical stability and mechanical properties, enabling high-performance sodium-sulfur batteries. This research provides new design strategies for the development of safe, low-cost, energy-dense, and long-lifetime all-solid-state sodium batteries.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Hengyi Fang, Suning Gao, Meng Ren, Yaohui Huang, Fangyi Cheng, Jun Chen, Fujun Li
Summary: In this study, sodium diphenyl ketone (Na-DK) was used to presodiate the hard carbon (HC) anode for sodium-ion batteries, improving its initial Coulombic efficiency and stability. Na-DK achieved dual-function presodiation by compensating the irreversible sodium uptake at oxygen-containing functional groups and reacting with carbon defects in HC. The resulting sodium induced a robust sodium fluoride (NaF)-rich solid electrolyte interphase (SEI) on HC, promoting interfacial reaction kinetics and stable sodium insertion and extraction. This work demonstrated high capacity retention of approximately 100% and 82.4% after 6800 cycles for presodiated HC (pHC) and full cells with Na3V2(PO4)3 cathodes, respectively. It provides valuable insights into chemical presodiation and offers a new strategy for highly stable sodium-ion batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Energy & Fuels
Jong Hun Sung, Taewan Kim, Soljin Kim, Fuead Hasan, Sangram Keshari Mohanty, Madhusudana Koratikere Srinivasa, Sri Charan Reddy, Hyun Deog Yoo
Summary: Extensive research has been conducted on electrode materials for rechargeable lithium-ion batteries (LIBs) due to increasing demand. Graphite plays a crucial role as a component of LIB anodes, and improving its charge-discharge performance and thermal stability is essential. This study demonstrates improved thermo-electrochemical stability and cyclability of a graphite anode by coating it with lithium phosphate (Li3PO4; LPO). The LPO-coated graphite anode showed significant enhancements in cycle and rate performances.
Article
Chemistry, Physical
Xianyang Li, Jiakang Qu, Zuojun Hu, Hongwei Xie, Huayi Yin
Summary: The facile synthesis method of Sb/CNTs composite anodes using stibnite and CNTs as feedstocks shows promising sodium-storage performance, with the unique structure contributing to its excellent electrochemical desulfurization ability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
