Honda Motor Co., Ltd.
Lithium ion battery control device, and lithium ion battery control method

Abstract:

A lithium ion battery control device includes an acquirer configured to acquire a determination index related to the degree of occlusion of a lithium ion battery in which a degree of occlusion of lithium ions occluded in graphite of a negative electrode changes in accordance with an amount of stored power, and a controller configured to perform control for causing the lithium ion battery to be charged with power or causing power of the lithium ion battery to be discharged so that the degree of occlusion is close to a degree of occlusion associated with a specific region when a region associated with the degree of occlusion is determined not to be the specific region associated with the degree of occlusion which includes LiC.sub.12 having a degree of occlusion represented by a stoichiometric ratio and does not include LiC.sub.6 having a degree of occlusion represented by a stoichiometric ratio.