ELECTRODE GROUP, BATTERY, AND BATTERY PACK

Title:

ELECTRODE GROUP, BATTERY, AND BATTERY PACK

Document Type and Number:

WIPO Patent Application WO/2019/187131

Kind Code:

A1

Abstract:

One embodiment according to the present invention provides an electrode group. This electrode group is provided with: a positive electrode comprising a positive electrode active material-containing layer; and a negative electrode comprising a negative electrode active material-containing layer. The negative electrode active material-containing layer comprises at least one type of titanium-containing complex oxide selected from the group consisting of monoclinic crystal-type niobium-titanium complex oxides and orthorhombic crystal-type titanium-containing complex oxides. At least a portion of the negative electrode active material-containing layer is disposed so as to face a portion of the positive electrode active material-containing layer. This electrode group satisfies the formula: 6500 ≤ A/B ≤ 18500, wherein A represents the area [cm2] of the portion of the negative electrode active material-containing layer that faces the positive electrode active material-containing layer, and B represents the thickness [cm] of the electrode group.

Inventors:

HOSHINA KEIGO (JP)
TANAKA MASANORI (JP)
HARADA YASUHIRO (JP)
TAKAMI NORIO (JP)

Application Number:

PCT/JP2018/013924

Publication Date:

October 03, 2019

Filing Date:

March 30, 2018

Export Citation:

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Assignee:

TOSHIBA KK (JP)

International Classes:

H01M2/10; H01M4/131; H01M4/48; H01M4/505; H01M4/525; H01M10/0587

Foreign References:

JP2015035420A	2015-02-19
JP2015159010A	2015-09-03
JP2017168352A	2017-09-21
JP2017168442A	2017-09-21
JP2016177974A	2016-10-06
JP2011009202A	2011-01-13
JP2010272492A	2010-12-02
JP2016066600A	2016-04-28
JP6189549B2	2017-08-30
JP2014167890A	2014-09-11
JP2016058264A	2016-04-21

Other References: