| 摘要 |
PROBLEM TO BE SOLVED: To suppress influence of moisture when the moisture amount in air is extremely small and be suppress influence by oxygen contained in air by stacking a negative electrode capable of storing/releasing lithium ions; a lithium ion conductive electrolyte; and a positive electrode containing a baked body of a lithium-containing oxide in air having the dew point of a specified temperature or lower. SOLUTION: The negative electrode, the electrolyte having lithium ion conductivity, and the positive electrode and stacked in air having the dew point of -20 deg.C or lower to manufacture a secondary battery. In the extremely dried state having the dew point of -20 deg.C or lower, even if oxygen is present, decomposition of an electrode active material or the electrolyte is retarded, and the secondary battery having characteristics similar to those manufactured in an inert atmosphere can be obtained. Dried air having the dew point of -20 deg.C or lower is obtained by a process adsorbing moisture with an adsorbent, or a process passing air through a refrigerator kept at -20 deg.C or lower. |
