title: High-Energy All-Solid-State Lithium Batteries with Ultralong Cycle Life.
abstract: High energy and power densities are the greatest challenge for all-solid-state lithium batteries due to the poor interfacial compatibility between electrodes and electrolytes as well as low lithium ion transfer kinetics in solid materials. Intimate contact at the cathode-solid electrolyte interface and high ionic conductivity of solid electrolyte are crucial to realizing high-performance all-solid-state lithium batteries. Here, we report a general interfacial architecture, i.e., Li7P3S11electrolyte particles anchored on cobalt sulfide nanosheets, by an in situ liquid-phase approach. The anchored Li7P3S11electrolyte particle size is around 10 nm, which is the smallest sulfide electrolyte particles reported to date, leading to an increased contact area and intimate contact interface between electrolyte and active materials. The neat Li7P3S11electrolyte synthesized by the same liquid-phase approach exhibits a very high ionic conductivity of 1.5 × 10-3S cm-1with a particle size of 0.4-1.0 μm. All-solid-state lithium batteries employing cobalt sulfide-Li7P3S11nanocomposites in combination with the neat Li7P3S11electrolyte and Super P as the cathode and lithium metal as the anode exhibit excellent rate capability and cycling stability, showing reversible discharge capacity of 421 mAh g-1at 1.27 mA cm-2after 1000 cycles. Moreover, the obtained all-solid-state lithium batteries possesses very high energy and power densities, exhibiting 360 Wh kg-1and 3823 W kg-1at current densities of 0.13 and 12.73 mA cm-2, respectively. This contribution demonstrates a new interfacial design for all-solid-state battery with high performance.
authors: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, P. R. China.
authors: Xiayin
authors: X
authors: Yao
authors: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, P. R. China.
authors: Deng
authors: D
authors: Liu
authors: Department of Chemical and Biomolecular Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors: Chunsheng
authors: C
authors: Wang
authors: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, P. R. China.
authors: Peng
authors: P
authors: Long
authors: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, P. R. China.
authors: Gang
authors: G
authors: Peng
authors: Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors: Yong-Sheng
authors: YS
authors: Hu
authors: Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors: Hong
authors: H
authors: Li
authors: Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences , Beijing 100190, P. R. China.
authors: Liquan
authors: L
authors: Chen
authors: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, P. R. China.
authors: Xiaoxiong
authors: X
authors: Xu
keywords: All-solid-state lithium battery; cobalt sulfide−Li7P3S11 nanocomposites; cycling stability; interfacial architecture; sulfide electrolyte