Invention Grant
- Patent Title: Active material for lithium ion secondary battery, and lithium ion secondary battery
- Patent Title (中): 锂离子二次电池的活性物质和锂离子二次电池
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Application No.: US14387801Application Date: 2013-03-26
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Publication No.: US09437865B2Publication Date: 2016-09-06
- Inventor: Hideaki Seki , Tomohiko Kato , Hirofumi Nakano , Atsushi Sano
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2012-070941 20120327
- International Application: PCT/JP2013/058665 WO 20130326
- International Announcement: WO2013/146723 WO 20131003
- Main IPC: H01M4/505
- IPC: H01M4/505 ; H01M4/131 ; H01M4/525 ; H01M4/485 ; H01M10/0525 ; H01M4/02
Abstract:
To provide an active material having high capacity and excellent cycle characteristics. An active material has a layered crystal structure and is expressed by a compositional formula (1) LiyNiaCobMncMdOx (1), where the element M is at least one kind of element selected from the group consisting of Al, Si, Zr, Ti, Fe, Mg, Nb, Ba, and V; 1.9≦(a+b+c+d+y)≦2.1; 1.05≦y≦1.35; 0
Public/Granted literature
- US20150064558A1 ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY Public/Granted day:2015-03-05
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