US 12,476,320 B2
Battery pack, vehicle equipped with battery pack, and replacement method of battery blocks in battery pack
Masakazu Habu, Toyota (JP); Koichi Ichikawa, Kasugai (JP); and Juni Yasoshima, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Jul. 12, 2022, as Appl. No. 17/862,759.
Claims priority of application No. 2021-122622 (JP), filed on Jul. 27, 2021.
Prior Publication US 2023/0033847 A1, Feb. 2, 2023
Int. Cl. H01M 50/269 (2021.01); G01R 31/3842 (2019.01); G01R 31/396 (2019.01); H01M 10/42 (2006.01); H01M 50/204 (2021.01); H01M 50/249 (2021.01)
CPC H01M 50/269 (2021.01) [H01M 10/4207 (2013.01); H01M 10/425 (2013.01); H01M 50/204 (2021.01); H01M 50/249 (2021.01); G01R 31/3842 (2019.01); G01R 31/396 (2019.01); H01M 2220/20 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A vehicle comprising:
a battery pack comprising a plurality of battery blocks, the battery blocks being arrayed adjacent to each other in a stacking direction that is set in advance, multiple non-replacement battery blocks, which are batteries having a memory effect among the battery blocks, being adjacent to each other in the stacking direction, and replacement battery blocks, in which a memory effect is absent among the battery blocks, being adjacent to each other in the stacking direction
an electric motor configured to exchange electric power with the battery pack; and
an electronic control unit configured to, when a count of a voltage difference between two of the battery blocks adjacent to each other being not less than a first threshold value that is set in advance is not less than a second threshold value, store a block number of a battery block that has a lower voltage between the battery blocks adjacent to each other as a block number of a battery block to be replaced, and issue a warning.