Title:
非水電解液二次電池の製造方法
Document Type and Number:
Japanese Patent JP6852116
Kind Code:
B2
Abstract:
To provide a method for manufacturing a nonaqueous electrolyte secondary battery, which is superior in charge capacity characteristic of a battery after cycles.SOLUTION: In a method for manufacturing a nonaqueous electrolyte secondary battery, the nonaqueous electrolyte secondary battery has a separator for a nonaqueous electrolyte secondary battery, which includes a polyolefin porous film, a porous layer containing a polyvinylidene fluoride-based resin, a positive electrode plate and a negative electrode plate, where the value of the positive electrode plate, represented by the following formula (1) falls in a range of 0.00 or more and 0.50 or less, and the value of the negative electrode plate, represented by the formula (1) is in a range of 0.00 or more and 0.50 or less: |1-T/M| (1). Further, the porous layer is disposed between the separator for a nonaqueous electrolyte secondary battery and at least one of the positive and negative electrode plates; in the polyvinylidene fluoride-based resin, the α type crystalline content is 35.0 mol% or more. The method comprises the step of coating each current collector with an active substance at a coating speed of 10-200 m/minute, thereby preparing the positive and negative electrode plates.SELECTED DRAWING: None
Inventors:
Arise Ichiro
Toshihiko Ogata
Kurakane Kosuke
Junji Suzuki
Toshihiko Ogata
Kurakane Kosuke
Junji Suzuki
Application Number:
JP2019108158A
Publication Date:
March 31, 2021
Filing Date:
June 10, 2019
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
H01M10/058; H01M4/13; H01M4/139; H01M10/0566; H01M50/409
Domestic Patent References:
| JP2017168419A | ||||
| JP2017107848A |
Foreign References:
| WO2010089939A1 |
Other References:
小畠 淳平,スクラッチ試験機,Tecnical Sheet No.13011,日本,地方独立行政法人 大阪府立産業技術総合研究所,2013年10月29日,p.1-2
Attorney, Agent or Firm:
Kazuya Hasegawa
Kentaro Tsuruta
Kentaro Tsuruta