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US 12,119,440 B2Granted
Pressure sensitive adhesive sheet for batteries and lithium-ion battery
AssigneesLintec Corporation, Panasonic Holdings Corporation
InventorsTakeshi Ansai, Yuichi Kurata, Hajime Nishino, Tomoki Shiozaki, Kazuhiro Yoshii
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Abstract
A pressure sensitive adhesive sheet for batteries, which includes a base material and a pressure sensitive adhesive layer provided on one surface side of the base material. The pressure sensitive adhesive layer contains inorganic fine particles having a water content of 0.4% or less in a single body.
Claims6
A lithium-ion battery, comprising:
- two or more conductors fixed in a state of being in contact with each other inside the battery using a pressure sensitive adhesive sheet that comprises:
- a base material;
- and
- a pressure sensitive adhesive layer provided on one surface side of the base material,
- the pressure sensitive adhesive layer containing inorganic fine particles having a water content of 0.4% or less in a single body, the inorganic fine particles being sulfate fine particles,
- the pressure sensitive adhesive layer being formed of a pressure sensitive adhesive composition that consists of:
- a (meth)acrylic ester polymer (A) that is a polymer obtained by solution polymerization, the (meth)acrylic ester polymer (A) having a weight-average molecular weight of 500,000 or more and 2,500,000 or less,
- a crosslinker (B),
- the inorganic fine particles, and
- at least one additive selected from a tackifier, an antioxidant, a softening agent, and a filler.
7 more elements
Dependencies are inferred from the claim text.