Positive electrode for lithium ion battery, method for producing said positive electrode, and lithium ion battery
View Patent ↗The present invention provides a positive electrode for lithium ion battery reducing a contact resistance of a battery and achieving an excellent output property. The positive electrode for lithium ion battery comprising a mixed layer comprising: metal forming a current collector, and positive electrode active material dispersed in a state of layer in the metal forming the current collector.
1. A positive electrode for lithium ion battery comprising:
a mixed layer comprising:
metal forming a current collector, and
positive electrode active material dispersed in a state of layer in the metal forming the current collector; and
a layer of only the metal, wherein the mixed layer is formed on the layer of only the metal.
2. The positive electrode for lithium ion battery of claim 1 , wherein the metal is aluminum or aluminum alloy.
3. The positive electrode for lithium ion battery of claim 1 , wherein the positive electrode active material is a lithium-containing transition metal oxide.
4. The positive electrode for lithium ion battery of claim 3 , wherein the transition metal in the lithium-containing transition metal oxide is one or more selected from the group consisting of Ni, Mn, Co and Fe.
5. The positive electrode for lithium ion battery of claim 1 , wherein a crystal structure of the positive electrode active material has a layer structure or a spinel structure.
6. A lithium ion battery comprising the positive electrode for lithium ion battery of claim 1 .