| 摘要 |
<p>A lithium secondary cell which has an electrode body containing a positive electrode plate and a negative electrode plate being wound or laminated via a separator and a nonaqueous electrolytic solution containing a lithium compound as an electrolyte, characterized in that at least one of the positive electrode plate, the negative electrode plate the separator and the nonaqueous electrolytic solution comprises at least one of (a) an organic or inorganic inhibitor which is a Cu corrosion inhibitor or a Cu trapping agent, (b) a compound having an organic base moiety and an inorganic moiety in one molecule thereof, (c) a cyclic compound containing a N-O radical in the molecule thereof, (d) a cyclic compound which acts as a donor of Mn+2 in the nonaqueous electrolytic solution, (e) a compound containing an atom exhibiting Lewis acidity and an atom exhibiting Lewis basicity in one molecule thereof, (f) a three dimension type siloxane compound, and (g) a nonionic surfactant, or the nonaqueous electrolytic solution comprises (h) a water extracting agent or (i) a hydrofluoric acid extracting agent. The lithium secondary cell is improved in self-discharge characteristics, cycle characteristics, long-term stability and reliability.</p> |
