Stacking method of high power lithium battery
View Patent ↗The present invention relates to a process for stacking a high-power lithium battery, and the object of the present invention is to provide a process for stacking a high-power lithium battery, with lowered the error rate and minimized open circuit voltage drop of the battery. The process for stacking a high-power lithium battery according to the present invention is characterized by a process for preparing a lithium battery comprised of anodes ( 100 ), separators ( 300 ) and cathodes ( 200 ), which comprises the steps of a) providing the anode ( 100 ) attached to the separator ( 300 ); b) providing the cathode ( 200 ) attached to the separator ( 300 ); and c) alternately stacking the anodes ( 100 ) attached to the separator ( 300 ) and the cathodes ( 200 ) attached to the separator ( 300 ) to form a stack cell.
1. A process for stacking a high-power lithium battery comprising anodes, separators, and cathodes, the process comprising:
providing an anode attached to a first separator;
providing a cathode attached to a second separator;
storing the anode attached to the first separator in a first cartridge;
storing the cathode attached to the second separator in a second cartridge;
discharging the anode and the cathode through the first cartridge and the second cartridge; and
alternately stacking the cathode attached to the second separator and the anode attached to the first separator to form a stack cell.
2. A process for stacking a high-power lithium battery according to claim 1 , wherein the anode comprises a first metal film coated with a first lubricant material on a portion of both sides, and wherein the providing an anode further comprises:
attaching adhesive material to a non-coated portion of one side of each of a plurality of anodes, wherein the non-coated portion is not coated with the first lubricant material;
attaching the plurality of anodes with the adhesive material attached, onto the first separator such that each of the plurality of anodes is separated from each other; and
cutting the first separator with the plurality of anodes, attached, in each unit of the anodes.
3. A process for stacking a high-power lithium battery according to claim 1 , wherein the first metal film is made of copper.
4. A process for stacking a high-power lithium battery according to claim 1 , wherein the cathode comprises a second metal film coated with a second lubricant material on a portion of both sides, and wherein the providing a cathode further comprises:
attaching an adhesive material to a non-coated portion of one side of each of a plurality of cathodes, wherein the non-coated portion is not coated with a second lubricant material;
attaching the plurality of cathodes with the adhesive material attached, onto the second separator such that each of the plurality of cathodes is separated from each other; and
cutting the second separator with the plurality of cathodes attached, in each unit of the cathodes.
5. A process for stacking a high-power lithium battery according to claim 4 , wherein the second metal film is made of aluminum.
6. A process for stacking a high-power lithium battery according to claim 1 , wherein the alternately stacking further comprises:
storing an anode not attached to a separator in a third cartridge;
discharging the anode not attached to the separator through the third cartridge, and after disposing the anode in a lowest layer, attaching the adhesive material onto the anode not attached to the separator;
stacking the cathode attached to the second separator on the anode not attached to the separator, and attaching the adhesive material onto the cathode attached to the second separator;
stacking the anode attached to the first separator on the cathode attached to the second separator, and attaching the adhesive material onto the anode attached to the first separator; and
stacking another cathode attached to the second separator on the anode attached to the first separator, and attaching the adhesive material onto the another cathode attached to the second separator.
7. A process for stacking a high-power lithium battery according to claim 2 , wherein the adhesive material is adhesive means including an adhesive agent or adhesive tape.
8. A process for stacking a high-power lithium battery according to claim 4 , wherein the adhesive material is adhesive means including an adhesive agent or adhesive tape.
9. A process for stacking a high-power lithium battery according to claim 6 , wherein the adhesive material is adhesive means including an adhesive agent or adhesive tape.
10. A process for stacking a high-power lithium battery according to claim 2 , wherein the cutting the first separator with the anode attached comprises cutting the first separator with the anode attached using heat cutting.
11. A process for stacking a high-power lithium battery according to claim 4 , wherein the cutting the second separator with the cathode attached comprises cutting the second separator with the cathode attached using heat cutting.