Electrode tab pad plate

Patent metadata

Field	Value
Publication number	US-10153476-B2
Application number	US-201615258686-A
Country	US
Kind code	B2
Filing date	Sep 7, 2016
Priority date	Mar 18, 2016
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

The present application relates to an electrode tab pad plate, the electrode tab pad plate is of a fork shape, including a joint part and two first fork feet, the two first fork feet are arranged in parallel, and a first gap is provided between the two first fork feet, both the first fork feet are connected with the joint part. The electrode tab pad plate provided by the present application, through gathering the electrode tabs at inner sides of the electrode tab pad plate, so that the electrode tabs are gathered toward the direction away from the battery housing, so as to guarantee the safety performance of the Li-ion battery, since the space occupied by the electrode tab pad plate is small, which facilitates the improvement of the cell capacity, thereby improving the performance of the battery.

First claim

What is claimed is:

1. A battery, comprising a cell and an electrode tab pad plate, wherein the electrode tab pad plate is of a fork shape and comprises a joint part and two first fork feet, the two first fork feet are arranged in parallel, and a first gap is provided between the two first fork feet, the two first fork feet are connected with the joint part,
wherein electrode tabs are arranged at the top of the cell, the electrode tab pad plate is arranged at a top surface of the cell, so that the electrode tabs of the cell are accommodated in the first gap; and
wherein the electrode tabs are firstly bended towards an external side of one of the two first fork feet, and extend to an upside of the one of the two first fork feet, and then extend facing towards the one of the two first fork feet.

2. The battery according to claim 1 , wherein the electrode tab pad plate further comprises a second fork foot, the second fork foot is arranged between the two first fork feet, and is arranged in parallel to the two first fork feet, a second gap is provided between the second fork foot and each of the two first fork feet, respectively, the second fork foot is connected with the joint part, there are at least two cells which are arranged in parallel, electrode tabs are arranged at top of each cell of the at least two cells, multiple electrode tabs are arranged in parallel, the electrode tab pad plate is arranged along a direction parallel to the top surface of the cell, so that the electrode tabs of the cell are all accommodated in the second gap.

3. The battery according to claim 2 , wherein for each of the at least two cells, the electrode tabs extending facing towards the one of the two first fork feet further extends to upside of the second gap.

4. The battery according to claim 3 , wherein distance between two side surfaces of the two first fork feet facing towards each other is at least 1 mm larger than distance between the electrode tabs acommodated in the two second gaps.

5. The battery according to claim 1 further comprises a handheld part, the handheld part is arranged at a side of the joint part away from the two first fork feet.

6. The battery according to claim 1 , wherein a first guiding surface is provided at an end of each of the two first fork feet away from the joint part, the first guiding surface approaches the first gap gradually in a direction from a side of each of the two first fork feet away from the joint part to a side of each of the two first fork feet close to the joint part.

7. The battery according to claim 6 , wherein the first guiding surface is a chamfer surface.

8. The battery according to claim 1 further comprises a second fork foot, the second fork foot is arranged between the two first fork feet, and is arranged in parallel to the two first fork feet, a second gap is provided between the second fork foot and each of the two first fork feet, respectively, the second fork foot is connected with the joint part.

9. The battery according to claim 8 , wherein a second guiding surface is provided at an end of the second fork foot away from the joint part, the second guiding surface approaches the second gap gradually in a direction from a side of the second fork foot away from the joint part to a side of the second fork foot close to the joint part.

10. The battery according to claim 1 , wherein the electrode tab pad plate is arranged along a direction parallel to the top surface of the cell.

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Guo Jian
• Li Quankun
• Deng Pinghua
• Wang Peng
• Zhu Lingbo

Classifications

• H01M10/0525 Primary

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M50/586

  inside the batteries, e.g. incorrect connections of electrodes · CPC title

• H01M50/533

  characterised by the shape of the leads or tabs · CPC title

• H01M2/22

  Electricity · mapped topic

• H01M2/266

  Electricity · mapped topic