Title:
単位電池
Document Type and Number:
Japanese Patent JP7326067
Kind Code:
B2
Abstract:
To provide a battery pack capable of preventing tab breakage due to expansion and contraction of an electrode assembly.SOLUTION: A battery pack includes an electrode assembly including a positive electrode and a negative electrode stacked with a separator interposed therebetween. The electrode assembly is folded in a zigzag shape while a plurality of collector exposed portions where an electrode active material layer is not formed are used as bent parts and are brought into contact with an electrode collector tab at a plurality of the bent parts in a movable state.SELECTED DRAWING: Figure 1
Inventors:
Hirofumi Yasuda
Kazuki Aihara
Atsushi Ito
Kazuki Aihara
Atsushi Ito
Application Number:
JP2019151813A
Publication Date:
August 15, 2023
Filing Date:
August 22, 2019
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
H01M10/0583; H01M10/04; H01M50/103; H01M50/531
Domestic Patent References:
| JP2001160393A | ||||
| JP2005340689A | ||||
| JP2016100122A | ||||
| JP2012124146A |
Foreign References:
| WO2012093588A1 | ||||
| WO2016113863A1 | ||||
| US20110274960 |
Attorney, Agent or Firm:
Patent Attorney Corporation Tokoshie Patent Office