NONAQUEOUS ELECTROLYTE BATTERY MANUFACTURING METHOD AND NONAQUEOUS ELECTROLYTE BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery manufacturing method in which no high resistance layer is formed in a junction interface between both electrode bodies even when two separately fabricated electrode bodies are pasted together.SOLUTION: A cathode body 1 including a cathode active material layer 12 made of a powder compact and an amorphous cathode side solid electrolyte layer (PSE layer) 13 which is formed by a gas phase method is prepared. An anode body 2 including an anode active material layer 22 made of a powder compact and an amorphous anode side solid electrolyte layer (NSE layer) 23 which is formed by a gas phase method is prepared. The cathode body 1 and the anode body 2 are placed one on top of another so that the solid electrolyte layers 13 and 23 are contacted with each other and are subjected to heat treatment while being pressurized, whereby the PSE layer 13 and the NSE layer 23 are crystallized and thus joined together. The cathode active material layer 12 is obtained by pressure-molding cathode active material powder consisting of boron doped LiNiCoAlOor LiNiMnCoOand sulfide solid electrolyte powder.