Title:
BATTERY, BATTERY PACK, ELECTRONIC DEVICE, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE DEVICE, AND ELECTRIC POWER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/012528
Kind Code:
A1
Abstract:
This battery is provided with a wound positive electrode and a wound negative electrode. The positive electrode is provided with: a positive electrode current collector; a first positive electrode active material layer disposed on the inner surface of the positive electrode current collector; and a second positive electrode active material layer disposed on the outer surface of the positive electrode current collector. The inner circumferential side end and the outer circumferential side end of the positive electrode current collector are covered with the first positive electrode active material layer. The first positive electrode active material layer has a low area density part at a position facing the inner circumferential end of the positive electrode.
Inventors:
SHIBUTANI KOJI (JP)
Application Number:
PCT/JP2017/025390
Publication Date:
January 18, 2018
Filing Date:
July 12, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M10/0587; H01M2/02; H01M4/02; H01M4/13; H01M6/02; H01M10/04
Domestic Patent References:
| WO2016116971A1 | 2016-07-28 |
Foreign References:
| JP2013051028A | 2013-03-14 | |||
| JP2013016260A | 2013-01-24 | |||
| JP2009181833A | 2009-08-13 | |||
| JP2000021453A | 2000-01-21 | |||
| JP2013171669A | 2013-09-02 |
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (JP)
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