| abstract |
A lithium secondary battery comprises a cathode, an anode, and an electrolyte solution containing lithium ions, wherein there is provided a capturing agent having a function to capture, by absorption, binding, or adsorption, impurities or by-products which are produced in the lithium secondary battery. The secondary battery has a long service life and a small self-discharge rate when used at a high-temperature environment, characterized by including a trapping substance of trapping mechanism. |