Invention Grant
- Patent Title: High capacity lithium ion battery formation protocol and corresponding batteries
- Patent Title (中): 高容量锂离子电池组成方案和相应的电池
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Application No.: US14833441Application Date: 2015-08-24
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Publication No.: US09553301B2Publication Date: 2017-01-24
- Inventor: Shabab Amiruddin , Bing Li
- Applicant: Envia Systems, Inc.
- Applicant Address: US CA Newark
- Assignee: Envia Systems, Inc.
- Current Assignee: Envia Systems, Inc.
- Current Assignee Address: US CA Newark
- Agency: Dardi & Herbert, PLLC
- Agent Peter S. Dardi
- Main IPC: H01M10/44
- IPC: H01M10/44 ; H01M4/04 ; H01M4/131 ; H01M4/36 ; H01M10/0525 ; H01M4/505 ; H01M4/525 ; H01M4/587 ; H01M10/056

Abstract:
Battery formation protocols are used to perform initial charging of batteries with lithium rich high capacity positive electrode to result a more stable battery structure. The formation protocol generally comprises three steps, an initial charge step, a rest period under an open circuit and a subsequent charge step to a selected partial activation voltage. The subsequent or second charge voltage is selected to provide for a desired degree of partial activation of the positive electrode active material to achieve a desired specific capacity while providing for excellent stability with cycling. The formation protocol is particularly effective to stabilize cycling for compositions with moderate lithium enrichment.
Public/Granted literature
- US20150364748A1 HIGH CAPACITY LITHIUM ION BATTERY FORMATION PROTOCOL AND CORRESPONDING BATTERIES Public/Granted day:2015-12-17
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