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US 10,381,610 B2Granted
Secondary battery comprising insulator assembly capable of suppressing damage to electrode assembly caused by external force
AssigneeLG Chem, Ltd.
InventorsJin Soo Kim, Duk Hyun Ryu, Kwan Soo Lee
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Abstract
A secondary battery includes a container, an electrode assembly received in the container, and an insulator assembly disposed on at least one of an upper end and a lower end of the electrode assembly. When the electrode assembly is moved vertically due to inertia, the insulator assembly is elastically contracted and restored as a reaction to the inertia, thereby reducing pressure generated between an interior surface of the container and the electrode assembly. The insulation assembly may provide insulation effect. It may function as an electrolytic solution flow path.
Claims14
A secondary battery comprising:
- a container;
- an electrode assembly that is disposed in the container and includes a cathode, an anode, and
- a separating membrane disposed between the cathode and the anode;
- and
- an insulator assembly that is mounted on an upper end of the electrode assembly, a lower end thereof, or both,
- wherein the insulator assembly includes:
- (i) a first insulating plate formed of a woven structure of polymer fibers, (ii) a second insulating plate formed of a nonwoven structure of polymer fibers, (iii) a third insulating plate formed of a nonwoven or woven structure of polymer fibers and provided with a plurality of apertures, or (iv) a combination thereof, and
- wherein, when the electrode assembly is moved upwardly or downwardly due to inertia, the insulator assembly is elastically contracted and restored as a reaction to the inertia to reduce pressure generated between the electrode assembly and an interior surface of the container.
5 more elements
Dependencies are inferred from the claim text.