Lithium metal foil for battery or capacitor
View Patent ↗A lithium ion capacitor includes, as a lithium ion supply source, a lithium metal foil for batteries or capacitors. A current collector 4 and a separator 3 formed of a paper or resin nonwoven fabric are preliminarily pressure-bonded and integrated to opposite surfaces of a lithium metal foil 1 for batteries or capacitors.
1. A method of manufacturing strip-shaped lithium metal foils for batteries or capacitors comprising:
attaching a separator to one surface of a lithium metal foil by pressure-bonding;
attaching a current collector to an opposite surface of the lithium metal foil by pressure-bonding, so as to form an attached lithium metal foil; wherein the attached lithium metal foil consists of the lithium metal foil, the separator, and the current collector;
cutting the attached lithium metal foil in which the separator is attached on the one surface by pressure-bonding and the current collector is attached on the opposite surface by pressure-bonding to form the strip-shaped lithium metal foils; and
disposing the strip-shaped lithium metal foils into cells of the batteries or capacitors.
2. The manufacturing method according to claim 1 ,
wherein the separator and the current collector are porous materials having through-holes.
3. The manufacturing method according to claim 1 ,
wherein the separator is a paper or resin non-woven fabric, and
wherein the paper or resin non-woven fabric is attached to the lithium metal foil by pressure-bonding.
4. The manufacturing method according to claim 1 ,
wherein the lithium metal foil has a thickness of 5 to 500 μm.
5. The manufacturing method according to claim 1 ,
wherein the separator and the current collector have a thickness of 10 to 150 μm.