Title:
SECONDARY BATTERY PACK
Document Type and Number:
WIPO Patent Application WO/2023/058315
Kind Code:
A1
Abstract:
[Problem] The present invention addresses the problem of ensuring the current capacity during discharge of a secondary battery pack, while having a temperature protection element connected to a secondary battery cell. [Solution] The present invention provides a secondary battery pack 1 which is provided with: a secondary battery cell 2; a connection circuit that is connected to a positive electrode terminal or a negative electrode terminal of the secondary battery cell 2; and a temperature protection element 10 that is provided on the secondary battery cell 2 and interrupts electric current in response to changes in the temperature. The connection circuit comprises a switch means which applies electric current to the temperature protection element 10 during charge of the secondary battery pack, and which reduces the electric current to be applied to the temperature protection element 10 during discharge of the secondary battery pack.
Inventors:
KUMON TAKAHIRO (JP)
YOSHIOKA MASAKI (JP)
YOSHIOKA MASAKI (JP)
Application Number:
PCT/JP2022/030090
Publication Date:
April 13, 2023
Filing Date:
August 05, 2022
Export Citation:
Assignee:
BOURNS KK (JP)
International Classes:
H01M50/581; H01H9/54; H01M10/44; H01M10/48; H01M50/204; H01M50/284; H01M50/519; H02H7/18; H02J7/00
Domestic Patent References:
| WO2011016497A1 | 2011-02-10 |
Foreign References:
| JP2002208443A | 2002-07-26 | |||
| JP2007305451A | 2007-11-22 |
Attorney, Agent or Firm:
ITAYA Masayuki (JP)
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