Patent ID: 8771866

Claim:
A method of forming a secondary battery comprising: positioning an electrode assembly between a first pouch sheet and a second pouch sheet; initially sealing outer portions of the first pouch sheet and of the second pouch sheet on at least one side of the first and second pouch sheets so that a space is formed between the sealed portion and the electrode assembly wherein the space extends the length of the electrode assembly on two sides of the electrode assembly; injecting an electrolyte into the pouch after initially sealing outer portions of the first pouch sheet and of the second pouch sheet on at least one side of the first and second pouch sheets wherein the electrolyte travels the length of the length of the electrode assembly in the spaces; and additionally sealing outer portions of the first pouch sheet and of the second pouch sheet on the at least one side of the first and second pouch sheets wherein additionally sealing outer portions of the first pouch sheet and the second pouch sheets results in sealing more of the same outer portions of the first pouch sheet and of the second pouch sheet than was sealed when the outer portion of the first pouch sheet and the inner portions of the second pouch sheet was sealed so that the space formed between the sealed portion and the electrode assembly is removed.