Title:
CYLINDRICAL BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/070513
Kind Code:
A1
Abstract:
This cylindrical battery (10) is provided with a positive electrode lead (20) which is led out from an electrode body (14) to a sealing body (17) side, and which is bonded to the inner surface of the sealing body (17). The sealing body (17), which closes an opening of an outer package can (16), has a projected part (40) that is arranged along a concentric circle of the outer circumference circle of the sealing body (17) on the electrode body (14)-side inner surface (30). The positive electrode lead (17) has, sequentially in the lead-out direction from the electrode body (14) side toward the sealing body (17) side, a first bent part (23) that is bent radially inward and a second bent part (24) that is bent into a generally U-shape toward the first bent part (23) side. The second bent part (24) overlaps with a region R, which is surrounded by the projected part (40), in the axial direction.
Inventors:
YOSHIDA MASAYOSHI
Application Number:
PCT/JP2023/032210
Publication Date:
April 04, 2024
Filing Date:
September 04, 2023
Export Citation:
Assignee:
PANASONIC ENERGY CO LTD (JP)
International Classes:
H01M50/533; H01M50/107; H01M50/152; H01M50/342; H01M50/545; H01M50/559
Domestic Patent References:
| WO2022092020A1 | 2022-05-05 | |||
| WO2016157750A1 | 2016-10-06 | |||
| WO2021200440A1 | 2021-10-07 | |||
| WO2022149392A1 | 2022-07-14 |
Foreign References:
| JPH04249072A | 1992-09-04 | |||
| JPH05343043A | 1993-12-24 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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