NON-AQUEOUS ELECTROLYTE CELL AND CELL PACK

Title:

NON-AQUEOUS ELECTROLYTE CELL AND CELL PACK

Document Type and Number:

WIPO Patent Application WO/2018/088557

Kind Code:

A1

Abstract:

According to the embodiment, there is provided a non-aqueous electrolyte cell provided with an exterior member, a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode contains, as an active material, a lithium-containing nickel-cobalt-manganese composite oxide represented by Li1-xNi1-a-bCoaMnbO2 (satisfying –0.2 ≤ x ≤ 0.5, 0 < a ≤ 0.5, and 0 < b ≤ 0.5). The negative electrode contains, as an active material, a lithium titanium composite oxide having a spinel structure. With the charging rate of the non-aqueous electrolyte cell set at 30%, the gas composition within the exterior member when allowed to stand for 24 hours at 35°C satisfies formulas (1) to (3). VH2 is the hydrogen gas quantity (cc) per 1 g of the negative electrode, VC3H6 is the propylene gas quantity (cc) per 1 g of the negative electrode, and VCO is the carbon monoxide gas quantity (cc) per 1 g of the negative electrode. 0.02 (cc/g) ≤ VH2 ≤ 0.1 (cc/g) (Formula 1) 0.05 ≤ VC3H6/VCO ≤ 0.1 (Formula 2) 1 ≤ VCO/VH2 ≤ 9 (Formula 3)

Inventors:

HAGIWARA ASUNA (JP)
YAMAMOTO DAI (JP)
TANAKA MASANORI (JP)

Application Number:

PCT/JP2017/040773

Publication Date:

May 17, 2018

Filing Date:

November 13, 2017

Export Citation:

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Assignee:

TOSHIBA KK (JP)
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP (JP)

International Classes:

H01M10/0525; H01M2/10; H01M4/1391; H01M4/485; H01M4/505; H01M4/525; H01M10/0569

Domestic Patent References:

WO2013031253A1	2013-03-07
WO2014051020A1	2014-04-03

Foreign References:

JP2005317512A	2005-11-10
JP2008091326A	2008-04-17
JP2010212092A	2010-09-24

Other References: