| CPC H01M 10/443 (2013.01) [G01R 31/3648 (2013.01); H01M 10/48 (2013.01); H02J 7/0048 (2020.01); H01M 2010/4271 (2013.01)] | 8 Claims |
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1. A battery management apparatus for managing a chargeable-dischargeable battery,
the battery management apparatus comprising:
a battery status calculation unit that calculates a degradation degree of the battery;
a degradation speed calculation unit that calculates a degradation speed of the battery on the basis of the degradation degree;
an upper limit temperature setting unit that sets an upper limit temperature of the battery on the basis of the degradation speed; and
a timing decision unit that decides timing to raise the upper limit temperature on the basis of the degradation speed,
wherein the battery status calculation unit calculates an internal resistance increase amount of the battery as the degradation degree;
wherein the degradation speed calculation unit calculates a time derivative value of the internal resistance increase amount of the battery as the degradation speed;
wherein the timing decision unit compares the degradation speed with a degradation speed condition, determines a flag indicative of the timing on the basis of a result of the comparison, and outputs the flag to the upper limit temperature setting unit;
wherein the upper limit temperature setting unit raises the upper limit temperature in a stepwise manner in accordance with the received flag; and
wherein the degradation speed condition is set to correspond to the upper limit temperature or the raised upper limit temperature as applicable when the degradation speed condition is set.
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