Cylindrical secondary battery including adhesive portion including gas generating material
A secondary battery and gas generation technology, applied in the direction of cylindrical shell battery/battery, secondary battery, secondary battery manufacturing, etc., can solve the problem of not proposing the connection between electrode terminals and electrode tabs
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example 1
[0102] 40% by weight of epoxy resin based on the total weight of the bonded unit as the bonding material, 30% by weight based on the total weight of the bonded unit of silver as the conductive material, and 30% by weight based on the total weight of the bonded unit Lithium carbonate (Li 2 CO 3 ) As a gas generating material, the above-mentioned adhesive material, conductive material, and gas generating material were mixed with NMP, and dried to manufacture a paste-phase adhesive unit.
[0103] The bonded unit thus produced is added to a structure having Figure 4 The shown structure is on the positive electrode tab of the cylindrical secondary battery, and added to the lower end of the cap assembly of the cylindrical secondary battery to realize the electrical connection between the positive electrode tab and the current interruption device. For experimental precision, five secondary batteries were fabricated under the same conditions.
example 2
[0105] A paste-phase bonded unit was fabricated in the same manner as in Example 1, except that 40% by weight of silver was used as the conductive material and 20% by weight of lithium carbonate, and then five cylindrical secondary batteries were fabricated , each cell is added with a bonding unit.
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