MANUFACTURING METHOD OF LITHIUM ION BATTERY

Japanese Patent JP2019212464

A

To provide a manufacturing method of a lithium ion battery, capable of immersing uniformly an electrolyte.SOLUTION: A manufacturing method of a lithium ion battery, comprising: a lamination unit in which an electrode active material layer A and an electrode active material layer B opposite to the A are laminated via a separator; an electrolyte; and an outer casing that houses them, includes a lamination step of obtaining the lamination unit made of laminating the A and B. At least one of the B contains the electrolyte before the formation of the lamination unit. The A and the B satisfy at least one condition of the following 1 and 2: 1. a total area of a fine hole of the A in the state where all fine holes held in a separator are filled with the electrolyte, and the electrolyte is not included is larger than a volume of the electrolyte included in the A; and 2. at least B contains the electrolyte, a ratio of the volume of the electrolyte contained in the B for the total volume of the fine hole included by the B in the state of excluding the electrolyte is larger than the ratio of the volume of the electrolyte contained in the A for the total volume of the fine hole of the A in the state of excluding the electrolyte.SELECTED DRAWING: Figure 1

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ISHITANI HIDEKI
HATANAKA MIYUKI
KUSACHI TAKEKI
KUBOTA HIROSHI
SATO HAJIME
AKAMA HIROSHI
HORIE HIDEAKI

JP2018106984A

December 12, 2019

June 04, 2018

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SANYO CHEMICAL IND LTD
NISSAN MOTOR

H01M10/0585

JP2014199792A	2014-10-23
JP2018081907A	2018-05-24
JP2017004946A	2017-01-05
JP2017147222A	2017-08-24
JP2007173063A	2007-07-05
JP2004111362A	2004-04-08

WO2018097213A1	2018-05-31
WO2018016166A1	2018-01-25

Atomi International Patent Office

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