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Title:
Rechargeable lithium-ion battery
Document Type and Number:
Japanese Patent JP5928591
Kind Code:
B2
Abstract:
[Problem] To provide a lithium ion secondary battery having excellent high-rate discharge characteristics. [Solution] Excellent high-rate discharge characteristics are obtained by a lithium ion secondary battery in which a compound represented by Lia(NixCoyAl1-x-y)O2 (where 0.95≦a≦1.05, 0.5≦x≦0.9, 0.05≦y≦0.2, and 0.7≦x+y≦1.0) is used as a positive electrode active material in a positive electrode, the positive electrode has an electrode density of 3.75 to 4.1 g/cm3, and the positive electrode has a BET specific surface area of 1.3 to 3.5 m2/g as an electrode.

Inventors:
Atsushi Sano
Hiroyuki Miyahara
Yasuhiko Emori
Application Number:
JP2014526996A
Publication Date:
June 01, 2016
Filing Date:
July 25, 2013
Export Citation:
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Assignee:
tdk Corporation
International Classes:
H01M4/131; H01M4/525; H01M10/052; H01M10/0568; H01M50/119; H01M50/121; H01M50/129
Domestic Patent References:
JP2010064944A2010-03-25
JP2006086116A2006-03-30
JP2002117896A2002-04-19
JP2004158441A2004-06-03
JPH07122262A1995-05-12
JP2003317708A2003-11-07
JP2000156231A2000-06-06
JP2005267940A2005-09-29
JP2010064944A2010-03-25
JP2006086116A2006-03-30
JP2002117896A2002-04-19
JP2004158441A2004-06-03
JPH07122262A1995-05-12
Foreign References:
WO2011083861A12011-07-14
WO2008120442A12008-10-09
WO2011083861A12011-07-14



 
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