| abstract |
(57) [Problem] To provide a lithium battery using a gel electrolyte with improved safety and reliability. An electrode assembly including a cathode and an anode, a separator interposed between the cathode and the anode, a crosslinked product of an epoxy resin-forming prepolymer and an amine, a lithium salt, and an organic solvent. A lithium battery comprising: a gel electrolyte; and a case containing the electrode assembly and the electrolyte. This allows The expansion phenomenon caused by the electrolyte is efficiently suppressed, and there is no possibility that the electrolyte leaks to the outside. Therefore, it is possible to prevent a problem of a decrease in the reliability and safety of the battery due to this. |