Stable Ni-rich layered oxide cathode for sulfide-based all-solid-state lithium battery
Yue Wang,
Zhixuan Wang,
Dengxu Wu,
Quanhai Niu,
Pushun Lu,
Tenghuan Ma,
Yibo Su,
Liquan Chen,
Hong Li,
Fan Wu
Affiliations
Yue Wang
Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China; Yangtze River Delta Physics Research Center, Liyang, 213300, Jiangsu, China; 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, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
Zhixuan Wang
Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China; Yangtze River Delta Physics Research Center, Liyang, 213300, Jiangsu, China; 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, China; University of Chinese Academy of Sciences, Beijing, 100049, China
Dengxu Wu
Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China; Yangtze River Delta Physics Research Center, Liyang, 213300, Jiangsu, China; 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, China; University of Chinese Academy of Sciences, Beijing, 100049, China
Quanhai Niu
Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China
Pushun Lu
Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China; Yangtze River Delta Physics Research Center, Liyang, 213300, Jiangsu, China; 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, China; University of Chinese Academy of Sciences, Beijing, 100049, China
Tenghuan Ma
Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China; Yangtze River Delta Physics Research Center, Liyang, 213300, Jiangsu, China; 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, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
Yibo Su
Science and Technology Research Institute China Three Gorges Corporation Beijing, China
Liquan Chen
Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China; Yangtze River Delta Physics Research Center, Liyang, 213300, Jiangsu, China; 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, China; University of Chinese Academy of Sciences, Beijing, 100049, China
Hong Li
Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China; Yangtze River Delta Physics Research Center, Liyang, 213300, Jiangsu, China; 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, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
Fan Wu
Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China; Yangtze River Delta Physics Research Center, Liyang, 213300, Jiangsu, China; 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, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China; Corresponding author. Tianmu Lake Institute of Advanced Energy Storage Technologies, Liyang, 213300, Jiangsu, China.
Sulfide-based all-solid-state lithium-ion batteries (ASSLIBs) are one of the most promising energy storage technologies due to their high safety and ionic conductivity. To achieve greater energy density, a Ni-rich layered oxide LiNixCoyM1-x-yO2 (NCM, M = Mn/Al, x ≥ 0.6) is desirable due to its relatively high voltage and large capacity. However, interfacial side reactions between the NCM and sulfide solid electrolytes lead to undesirable interfacial passivation layers and low ionic conductivity, thereby degrading the electrochemical performance of NCM sulfide all-solid-state batteries. Herein, a time-/cost-effective sulfidation strategy is exploited to sulfidize a Ni-rich NCM88 cathode in a mixed gas atmosphere of N2 and CS2. A new type of cathode (NCM88-S) with an ultrathin (∼2 nm) surface layer is obtained, which significantly reduces the interfacial side reactions/resistance and improves the interfacial stability. The resulting NCM88-S/Li6PS5Cl/Li4Ti5O12 ASSLIB exhibits superior performance, including a high discharge specific capacity (200.7 mAh g−1) close to that of liquid batteries, excellent cycling performance (a capacity retention of 87% after 500 cycles), and satisfactory rate performance (158.3 mAh g−1 at 1C).
