# US 12,183,954 B2 · Battery and electric device containing same

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- Number: US 12,183,954 B2
- Document ID: US12183954B2
- Status: Granted
- Kind: B2
- Application number: 17/458,107
- Filed: 2021-08-26
- Published: 2022-01-20
- Granted: 2024-12-31
- Earliest claimed: 2020-07-14
- Assignees: Ningde Amperex Technology Limited
- Applicants: Ningde Amperex Technology Limited
- Inventors: Peipei Guo; Ping He; Yejun Peng
- Web page: https://patentgrep.com/patent/US12183954B2

## CPC

- H01M 50/172: Arrangements of electric connectors penetrating the casing
- H01M 50/54: Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
- H01M 10/0431: {Cells with wound or folded electrodes (H01M10/045 takes precedence)}
- H01M 50/116: characterised by the material
- H01M 50/121: Organic material
- H01M 50/122: Composite material consisting of a mixture of organic and inorganic materials
- H01M 50/169: by welding, brazing or soldering
- H01M 50/502: Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M 50/528: Fixed electrical connections, i.e. not intended for disconnection
- H01M 50/533: characterised by the shape of the leads or tabs
- H01M 50/543: Terminals
- H01M 50/547: characterised by the disposition of the terminals on the cells
- H01M 50/552: characterised by their shape
- H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A battery, including a battery cell and a housing assembly accommodating the battery cell. The battery cell includes a first tab. The housing assembly includes a first housing body and a second housing body. The first housing body and the second housing body define an accommodation space to accommodate the battery cell. The first housing body and/or the second housing body include an installation portion provided with a via hole. A conductive member is disposed on an inner surface or an outer surface of the housing assembly and electrically connected to the first tab. In a through direction of the via hole, a projection of the conductive member is at least partially located in the via hole. The conductive member can avoid occupying internal space of the housing assembly, and increase the energy density of the battery. An electric device containing the battery is provided.

## Claims

### Claim 1

A battery, comprising:
a battery cell and a housing assembly accommodating the battery cell, wherein the battery cell comprises a first tab, the housing assembly comprises a first housing body and a second housing body, the first housing body and the second housing body define an accommodation space to accommodate the battery cell; and
the first housing body and/or the second housing body comprise an installation portion provided with a via hole, and the installation portion is made of an insulation material; and
wherein the battery further comprising a conductive member electrically connected to the first tab, the conductive member is disposed on an inner surface or an outer surface of the housing assembly; and a projection of the conductive member is at least partially located in the via hole in a through direction of the via hole,
the first housing body comprises a bottom wall and a sidewall, the sidewall is disposed on a periphery of the bottom wall and forms the accommodation space together with the bottom wall; and the via hole is located on the bottom wall, the sidewall, or the second housing body,
the sidewall comprises a first surface facing away from the bottom wall; and the first housing body comprises a first protruding portion, the first protruding portion is disposed protrusively on the first surface and forms an accommodation groove together with the first surface; and the second housing body is disposed on the first surface, an edge of the second housing body is accommodated in the accommodation groove, and
the first housing body comprises a second protruding portion, the second protruding portion is formed by horizontally extending the first protruding portion from an end away from the first surface toward a central axis of the battery; the second protruding portion, the first protruding portion, and the first surface together form the accommodation groove; and the second protruding portion is further directly connected to a surface of the second housing body facing away from the battery cell.

### Claim 2 (depends on 1)

The battery according to claim 1, wherein the conductive member is disposed on a surface selected from the group consisting of a surface of the second housing body, a surface of the bottom wall and a surface of the sidewall, wherein the surface faces away from the battery cell.

### Claim 3 (depends on 1)

The battery according to claim 1, wherein the conductive member is disposed on a surface selected from the group consisting of a surface of the second housing body, a surface of the bottom wall, a surface of the sidewall, wherein the surface faces away from the battery cell.

### Claim 4 (depends on 1)

The battery according to claim 1, further comprising an adapter member, wherein the adapter member is electrically connected to the conductive member and the first tab.

### Claim 5 (depends on 1)

The battery according to claim 1, wherein a thickness of the conductive member is in the range of from 0.01 mm to 2 mm.

### Claim 6 (depends on 1)

The battery according to claim 1, wherein the battery cell further comprises a first electrode plate, a second electrode plate, and a second tab with an opposite polarity to the first tab; the first tab is electrically connected to the first electrode plate; the second tab is electrically connected to the second electrode plate; the first electrode plate and the second electrode plate are stacked or wound to form the battery cell; the first housing body is made of a conductive material; the second tab is electrically connected to the first housing body.

### Claim 7 (depends on 1)

The battery according to claim 1, wherein the conductive member fully overlays the via hole.

### Claim 8 (depends on 1)

The battery according to claim 1, wherein the first housing body and/or the second housing body further comprise a conductive portion connected to the installation portion.

### Claim 9 (depends on 1)

The battery according to claim 1, wherein the first housing body and/or the second housing body is made of an insulation material.

### Claim 10 (depends on 1)

An electric device, comprising the battery according to claim 1.

### Claim 11 (depends on 10)

The electric device according to claim 10, wherein the first housing body comprises a bottom wall and a sidewall, the sidewall is disposed on a periphery of the bottom wall and forms the accommodation space together with the bottom wall; and the via hole is located on the bottom wall, the sidewall, or the second housing body.

### Claim 12 (depends on 11)

The electric device according to claim 11, wherein the sidewall comprises a first surface facing away from the bottom wall; and the first housing body comprises a first protruding portion, the first protruding portion is disposed protrusively on the first surface and forms an accommodation groove together with the first surface; and the second housing body is disposed on the first surface, an edge of the second housing body is accommodated in the accommodation groove.

### Claim 13 (depends on 12)

The electric device according to claim 12, wherein the first housing body comprises a second protruding portion, the second protruding portion is formed by horizontally extending the first protruding portion from an end away from the first surface toward a central axis of the battery; the second protruding portion, the first protruding portion, and the first surface together form the accommodation groove; and the second protruding portion is further connected to a surface of the second housing body facing away from the battery cell.

### Claim 14 (depends on 11)

The electric device according to claim 11, wherein the conductive member is disposed on a surface selected from the group consisting of a surface of the second housing body, a surface of the bottom wall and a surface of the sidewall, wherein the surface faces away from the battery cell.

### Claim 15 (depends on 11)

The electric device according to claim 11, wherein the conductive member is disposed on a surface selected from the group consisting of a surface of the second housing body, a surface of the bottom wall, a surface of the sidewall, wherein the surface faces away from the battery cell.

### Claim 16 (depends on 10)

The electric device according to claim 10, further comprising an adapter member, wherein the adapter member is electrically connected to the conductive member and the first tab.

### Claim 17 (depends on 10)

The electric device according to claim 10, wherein a thickness of the conductive member is in the range of from 0.01 mm to 2 mm.

### Claim 18 (depends on 10)

The electric device according to claim 10, wherein the battery cell further comprises a first electrode plate, a second electrode plate, and a second tab with an opposite polarity to the first tab; the first tab is electrically connected to the first electrode plate; the second tab is electrically connected to the second electrode plate; the first electrode plate and the second electrode plate are stacked or wound to form the battery cell; the first housing body is made of a conductive material; the second tab is electrically connected to the first housing body.

### Claim 19 (depends on 10)

The electric device according to claim 10, wherein the conductive member fully overlays the via hole.

### Claim 20 (depends on 10)

The electric device according to claim 10, wherein the first housing body and/or the second housing body further comprise a conductive portion connected to the installation portion.

### Claim 21 (depends on 10)

The electric device according to claim 10, wherein the first housing body and/or the second housing body is made of an insulation material.

### Claim 22 (depends on 1)

The battery according to claim 1, wherein the second housing body is wholly made of the insulation material.