Title:
Manufacturing method of secondary battery and electrode
Document Type and Number:
Japanese Patent JP6292678
Kind Code:
B2
Abstract:
Secondary battery includes a battery assembly configured by alternately stacking positive electrodes 1 and negative electrodes 6 via separators 20, in which the positive electrode and the negative electrode respectively include collectors 3 and 8, and active materials 2 and 7 applied on the collectors. On each surface of the collector, a coated portion coated with the active material and an uncoated portion not coated with any active material are provided. In one or both of the positive electrode and the negative electrode, boundary portion 4a between the coated portion and the uncoated portion on the front surface of the collector, is positioned planarly away from boundary portion 4b between the coated portion and the uncoated portion on the rear surface of the collector.
Inventors:
Kazuya Mimura
Application Number:
JP2015522469A
Publication Date:
March 14, 2018
Filing Date:
December 10, 2013
Export Citation:
Assignee:
NEC Energy Device Co., Ltd.
International Classes:
H01M10/04; H01M2/06; H01M2/26; H01M4/02; H01M4/04; H01M4/13; H01M4/139; H01M10/052; H01M10/0585
Domestic Patent References:
| JP2004303622A | ||||
| JP2008300141A | ||||
| JP2005166353A | ||||
| JP200619199A | ||||
| JP201351035A |
Foreign References:
| WO2012124188A1 | ||||
| WO2005081336A1 |
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata
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