| 摘要 |
A secondary battery includes: a battery module including an electrolyte layer in a form of a plate, a positive electrode disposed on a first main surface of the electrolyte layer and containing a positive electrode active material, and a negative electrode disposed on a second main surface of the electrolyte layer and containing a negative electrode active material; and a conductive layer provided between battery modules, the secondary battery having more than one battery module and more than one conductive layer stacked in layers, wherein the positive electrode active material and the negative electrode active material are set in concentration in accordance with a temperature distribution in the secondary battery.
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