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Lithium‐Ion Batteries: Operando Magnetometry Probing the Charge Storage Mechanism of CoO Lithium‐Ion Batteries (Adv. Mater. 12/2021)
Author(s) -
Li Hongsen,
Hu Zhengqiang,
Xia Qingtao,
Zhang Hao,
Li Zhaohui,
Wang Huaizhi,
Li Xiangkun,
Zuo Fengkai,
Zhang Fengling,
Wang Xiaoxiong,
Ye Wanneng,
Li Qinghao,
Long Yunze,
Li Qiang,
Yan Shishen,
Liu Xiaosong,
Zhang Xiaogang,
Yu Guihua,
Miao GuoXing
Publication year - 2021
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202170093
Subject(s) - materials science , energy storage , lithium (medication) , magnetometer , ion , battery (electricity) , nanotechnology , optoelectronics , energy density , chemical engineering , engineering physics , magnetic field , chemistry , organic chemistry , medicine , power (physics) , physics , quantum mechanics , engineering , endocrinology
In article number 2006629, Hongsen Li, Yunze Long, Qiang Li, and co‐workers use an advanced operando magnetometry technique to probe the charge‐storage mechanism of CoO lithium‐ion batteries, showing that the anomalous discharge capacity in this particular system is associated with both the reversible formation of a spin capacitor and the growth of a polymeric film at low voltages. The key catalytic role of metallic Co in assisting the polymeric film formation is demonstrated, which is helpful for the design of new types of energy‐storage devices and improving the energy density for future battery designs.