Lithium ion battery
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTakanobu Yamada
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Abstract
An object of this disclosure is to provide a lithium ion battery in which generation of heat can be suitably suppressed. Provided is a lithium ion battery including a positive electrode and a negative electrode. The positive electrode includes a positive electrode collector, a positive electrode active material layer, and an insulating layer provided on another part of the surface of the positive electrode collector, so as to be adjacent to the positive electrode active material layer. The insulating layer contains an inorganic filler and a binder. At least part of the surface of the inorganic filler is covered with LPO.
Claims4
A lithium ion battery, comprising:
- a positive electrode;
- a negative electrode;
- and a nonaqueous electrolyte, wherein
- the positive electrode includes
- a positive electrode collector;
- a positive electrode active material layer provided directly on part of the surface of the positive electrode collector;
- and
- an insulating layer provided directly on another part of the surface of the positive electrode collector, so as to be adjacent to the positive electrode active material layer;
- the insulating layer contains an inorganic filler, trilithium phosphate, and a binder;
- and
- at least part of the surface of the inorganic filler is covered with the trilithium phosphate.
Dependencies are inferred from the claim text.