US 2025/0096435 A1 · MULTI-STACK BATTERY CELLS WITH DIFFERENT TAB LENGTHS

Abstract

Some embodiments disclosed herein are directed to battery cells with battery stacks having different tab lengths. Some embodiments may include a first battery stack that includes a first plurality of tabs extending from the first battery stack, and a second battery stack adjacent to the first battery stack that includes a second plurality of tabs extending from the second battery stack, where the second plurality of tabs are shorter than the first plurality of tabs. A weld plate may be welded to the first plurality of tabs and the second plurality of tabs without trimming the first plurality of tabs. Other embodiments may be disclosed or claimed.

Claims20

Dependent claims

A battery cell, comprising:

a first battery stack that includes a first plurality of tabs extending from the first battery stack;
a second battery stack adjacent to the first battery stack, wherein the second battery stack includes a second plurality of tabs extending from the second battery stack, wherein the second plurality of tabs are shorter than the first plurality of tabs;
and
a weld plate that is welded to the first plurality of tabs and the second plurality of tabs without trimming the first plurality of tabs.

1 more element

A vehicle comprising:

an electric motor;
and
a battery cell coupled to the electric motor, the battery cell comprising:
a first battery stack that includes a first plurality of tabs extending from the first battery stack;
a second battery stack adjacent to the first battery stack, wherein the second battery stack includes a second plurality of tabs extending from the second battery stack, wherein the second plurality of tabs are shorter than the first plurality of tabs;
and
a weld plate that is welded to the first plurality of tabs and the second plurality of tabs without trimming the first plurality of tabs.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/469,778Filed 19 Sep 2023

Published

20 Mar 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01M 50/538
Electrode connections inside a battery casing: connection of several leads or tabs of wound or folded electrode stacks
H01M 50/516
Methods for interconnecting adjacent batteries or cells: by welding, soldering or brazing
H01M 50/534
Electrode connections inside a battery casing: characterised by the material of the leads or tabs
H01M 50/536
Electrode connections inside a battery casing: characterised by the method of fixing the leads to the electrodes, e.g. by welding

Multi-stack battery cells with different tab lengths

Life of this patent

Multi-stack battery cells with different tab lengths

Life of this patent

Abstract

Claims20