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Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/221004
Kind Code:
A1
Abstract:
A lithium ion secondary battery is provided which has excellent energy density and output density, and which has excellent charge/discharge cycle characteristics. In this lithium ion secondary battery 1, positive electrodes 2 and negative electrodes 3 are adjacent to each other with separators 4 and 5 interposed alternately therebetween. The positive electrodes 2 are formed from a positive electrode current collector formed from a porous metal body, a first positive electrode active material 21 held on one side of the positive electrode current collector, and a second positive electrode active material 22 held on the other side. The negative electrodes 3 are formed from a negative electrode current collector formed from a porous metal body, a first negative electrode active material 31 held on one side of the negative electrode current collector, and a second negative electrode active material 32 held on the other side. The first positive electrode active material 21 faces the first negative electrode active material 31, and the positive electrode active material 22 faces the second negative electrode active material 32.

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Inventors:
TANAAMI KIYOSHI (JP)
TANAKA AKIHISA (JP)
AOYAGI SHINTARO (JP)
OKUNO KAZUKI (JP)
HOSOE AKIHISA (JP)
SENOO KIKUO (JP)
TAKEBAYASHI HIROSHI (JP)
Application Number:
PCT/JP2019/018563
Publication Date:
November 21, 2019
Filing Date:
May 09, 2019
Export Citation:
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Assignee:
HONDA MOTOR CO LTD (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H01M10/058; H01M4/13; H01M4/131; H01M4/133; H01M4/134; H01M4/38; H01M4/48; H01M4/505; H01M4/525; H01M4/587; H01M4/80; H01M10/052
Foreign References:
JP2009032444A2009-02-12
JP2017501535A2017-01-12
JP2015037024A2015-02-23
JP2014225430A2014-12-04
JP2013020735A2013-01-31
JP2002151055A2002-05-24
JP2017101887A2017-06-08
Other References:
See also references of EP 3796453A4
Attorney, Agent or Firm:
SATO & ASSOCIATES (JP)
Download PDF:
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