Patent ID: 8592078
Filing Date: 2013-11-26
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. A lithium ion battery, comprising: a) a battery core; b) a cylindrical shell, said cylindrical shell comprising a bottom wall, an opening, and a first cylindrical side wall having an upper portion and a lower portion; said upper portion being disposed around said opening; c) a positive guide needle of an anode; d) a negative guide needle of a cathode; e) a rubber plug, said rubber plug comprising a top surface, and a second cylindrical side wall having an inserting portion, a protruding portion, and a circular recess; f) a sealing band; and g) a pressure relief valve; wherein: said cylindrical shell is made of aluminum; said battery core is arranged within said cylindrical shell; said rubber plug is disposed above the said battery core; said inserting portion is disposed in said opening and said protruding portion extends out of said shell; said circular recess is disposed in said protruding portion; said positive guide needle of the anode and said negative guide needle of the cathode are led out from under said rubber plug; said battery core, said rubber plug, and said cylindrical shell are joined together through said sealing band which is molded by rolling; said sealing band is applied to said upper portion, said protruding portion, said recess, and an peripheral edge of said top surface; said sealing band is made of an insulated moldable material; and said pressure relief valve is disposed on said bottom wall.