| 摘要 |
Objects of the present invention are to improve the adhesion and processing characteristics of electrode composite layers and to provide a lithium secondary battery by which a decrease in battery capacity during high-temperature storage at 50° C. or higher is suppressed. The lithium secondary battery of the present invention comprises a positive electrode capable of storing and releasing lithium ions, a negative electrode capable of storing and releasing lithium ions, a separator disposed between the positive electrode and the negative electrode, and an electrolyte, wherein the negative electrode or the electrolyte contains a nonvolatile liquid.
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