Invention Grant
- Patent Title: High energy density fast charge Li ion battery and the method of preparing the same
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Application No.: US16599139Application Date: 2019-10-11
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Publication No.: US11196036B2Publication Date: 2021-12-07
- Inventor: Juncao Bian , Shengbo Lu , Chenmin Liu , Wai Yin Wong , Hong Zhao
- Applicant: Nano and Advanced Materials Institute Limited
- Applicant Address: HK Hong Kong
- Assignee: Nano and Advanced Materials Institute Limited
- Current Assignee: Nano and Advanced Materials Institute Limited
- Current Assignee Address: HK Hong Kong
- Agency: Idea Intellectual Limited
- Agent Margaret A. Burke; Sam T. Yip
- Main IPC: H01M4/133
- IPC: H01M4/133 ; H01M4/66 ; H01M10/0525 ; H01M10/42

Abstract:
A fast charge lithium ion battery capable of being charged or discharged with 80% capacity retention at C rate of at least 2C is provided in the present invention, which includes a fast charge graphite-based anode; a cathode; and a separator, wherein the anode includes an anode current collector and a fast charge graphite layer deposited on at least one surface of the anode current collector, the fast charge graphite having a lattice constant equals to or larger than 0.3374 nm, a D-band to G-band integrated area ratio (ID/IG) of 0.03 to 0.3, and a surface morphology of a plate-like crystal structure under a scanned electron microscope; the cathode includes a cathode current collector and one or more active materials deposited on at least one surface of the cathode current collector.
Public/Granted literature
- US20200044236A1 HIGH ENERGY DENSITY FAST CHARGE LI ION BATTERY AND THE METHOD OF PREPARING THE SAME Public/Granted day:2020-02-06
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