US 11,444,349 B2Granted

Battery

AssigneeNingde Amperex Technology Limited

InventorsJiaxin An, Jinhua He, Wei Gao, Jinhui Chen, Kun Wang

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Abstract

The present application discloses a battery to alleviate the impact on the main body of the battery and for improving the safety performance of the battery. The battery comprises a package case and a circuit board, wherein the package case forms a first surface and a buffer member is arranged between the circuit board and the first surface. In the present application, the buffer member between the circuit board and the first surface may alleviate the force received on the first surface, thereby alleviating the impact on the electrode assembly of the battery, avoiding the damage of the positive and negative electrode plates and the short circuit caused by the contact between the positive and negative electrodes, and improving the safety of battery.

Claims7

Dependent claims

A comprising a package case and a circuit board, wherein the package case forms a first surface parallel to the circuit board, and a buffer member is arranged between the circuit board and the first surface, the buffer member being parallel to the first surface and parallel to the circuit board, wherein the buffer member comprises a layered structure comprising at least an elastic layer and a rigid layer,

wherein the battery further comprises an electrode assembly including an electrode tab;
the package case further includes a first side perpendicular to the first surface;
and the electrode tab extends from the first side and is coupled with the circuit board,
wherein the buffer member includes a first buffer portion arranged between the circuit board and the first surface and a second buffer portion arranged between the circuit board and the first side, and
wherein the first buffer portion includes at least two elastic layers with the rigid layer arranged between the at least two elastic layers.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/168,826Filed 24 Oct 2018
Priority: CN 201820129871.725 Jan 2018
Published: US 2019/0229304 A125 Jul 2019
Granted: 13 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01M 10/04
Secondary cells; Manufacture thereof: construction or manufacture in general
H01M 50/103
Characterised by their shape or physical structure: prismatic or rectangular
H01M 50/14
Primary casings; Jackets or wrappings: for protecting against damage caused by external factors
H01M 50/24
Characterised by physical properties of casings or racks, e.g. dimensions: adapted for protecting batteries from their environment, e.g. from…

Family

US 2019/0229304 A1Pre-grant publication · published 25 Jul 2019
US 11,444,349 B2This patent

From the US filing history. Foreign family members aren’t listed.

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