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Elastic Lattice Enabling Reversible Tetrahedral Li Storage Sites in a High-Capacity Manganese Oxide Cathode.
Huang, Weiyuan; Yang, Luyi; Chen, Zhefeng; Liu, Tongchao; Ren, Guoxi; Shan, Peizhao; Zhang, Bin-Wei; Chen, Shiming; Li, Shunning; Li, Jianyuan; Lin, Cong; Zhao, Wenguang; Qiu, Jimin; Fang, Jianjun; Zhang, Mingjian; Dong, Cheng; Li, Fan; Yang, Yong; Sun, Cheng-Jun; Ren, Yang; Huang, Qingzhen; Hou, Guangjin; Dou, Shi-Xue; Lu, Jun; Amine, Khalil; Pan, Feng.
Afiliación
  • Huang W; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Yang L; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Chen Z; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Liu T; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
  • Ren G; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
  • Shan P; State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China.
  • Zhang BW; Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, New South Wales, 2522, Australia.
  • Chen S; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Li S; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Li J; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Lin C; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Zhao W; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Qiu J; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Fang J; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Zhang M; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Dong C; School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China.
  • Li F; State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning Province, 116023, P. R. China.
  • Yang Y; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
  • Sun CJ; State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China.
  • Ren Y; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
  • Huang Q; X-Ray Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
  • Hou G; NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899, USA.
  • Dou SX; State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning Province, 116023, P. R. China.
  • Lu J; Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, New South Wales, 2522, Australia.
  • Amine K; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
  • Pan F; Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA.
Adv Mater ; 34(30): e2202745, 2022 Jul.
Article en En | MEDLINE | ID: mdl-35657036
The key to breaking through the capacity limitation imposed by intercalation chemistry lies in the ability to harness more active sites that can reversibly accommodate more ions (e.g., Li+ ) and electrons within a finite space. However, excessive Li-ion insertion into the Li layer of layered cathodes results in fast performance decay due to the huge lattice change and irreversible phase transformation. In this study, an ultrahigh reversible capacity is demonstrated by a layered oxide cathode purely based on manganese. Through a wealth of characterizations, it is clarified that the presence of low-content Li2 MnO3 domains not only reduces the amount of irreversible O loss; but also regulates Mn migration in LiMnO2 domains, enabling elastic lattice with high reversibility for tetrahedral sites Li-ion storage in Li layers. This work utilizes bulk cation disorder to create stable Li-ion-storage tetrahedral sites and an elastic lattice for layered materials, with a reversible capacity of 600 mA h g-1 , demonstrated in th range 0.6-4.9 V versus Li/Li+ at 10 mA g-1 . Admittedly, discharging to 0.6 V might be too low for practical use, but this exploration is still of great importance as it conceptually demonstrates the limit of Li-ions insertion into layered oxide materials.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2022 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2022 Tipo del documento: Article Pais de publicación: Alemania