Patent ID: 7105253
Filing Date: 2006-09-12
Classification: C23C,H01M,Y02E,Y02P,Y10T

Abstract:
1. A method of manufacturing a lithium secondary cell comprising steps of: forming an active material layer of amorphous silicon on a collector by a method supplying raw material through discharge into a vapor phase; and holding said collector formed with said active material layer at least under an inert atmosphere or under a vacuum atmosphere up to preparation of said cell, wherein said step of forming said active material layer includes a step of forming said active material layer on said collector in a first apparatus having a first preliminary chamber by said method supplying raw material through discharge into a vapor phase, and said step of holding said collector at least under an inert atmosphere or under a vacuum atmosphere includes steps of: bringing said first preliminary chamber provided in said first apparatus and an outwardly dischargeable closed vessel arranged in said first preliminary chamber into an inert atmosphere, moving said collector formed with said active material layer into said closed vessel in said first preliminary chamber; and subjecting said closed vessel to a vacuum after said step of moving said collector formed with said active material layer into said closed vessel.