Methods for smart battery assembly

Patent metadata

Field	Value
Publication number	US-2025329889-A1
Application number	US-202319122016-A
Country	US
Kind code	A1
Filing date	Oct 18, 2023
Priority date	Oct 18, 2022
Publication date	Oct 23, 2025
Grant date	—

Abstract

A method for assembling a battery is described. The battery has a plurality of battery cells, a post assembly, a plurality of posts, and a plurality of straps. The method includes coupling each strap of the plurality of straps to one battery cell of the plurality of battery cells, coupling each post of the plurality of posts to one strap of the plurality of straps, where each one of the coupled posts is electrically coupled to one battery cell corresponding to the one strap, and performing an intercell coupling between at least a pair of battery cells of the plurality of battery cells by coupling a pair of posts of the plurality of posts.

First claim

1 . A method for assembling a battery, the battery having a plurality of battery cells, a plurality of straps, and a plurality of posts, the method comprising:
coupling each strap of the plurality of straps to one battery cell of the plurality of battery cells; coupling each post of the plurality of posts to one strap of the plurality of straps, each one of the coupled posts being electrically coupled to one battery cell corresponding to the one strap; and performing an intercell coupling between at least a pair of battery cells of the plurality of battery cells by coupling a pair of posts of the plurality of posts.

2 . The method of claim 1 , wherein the coupling of each strap of the plurality of straps to one battery cell of the plurality of battery cells is performed using a first cast-on-strapping, COS, process.

3 . The method of claim 1 , wherein the coupling of each post of the plurality of posts to one strap of the plurality of straps is performed using a second COS process.

4 . The method of claim 1 , wherein the method further includes, prior to coupling each strap to one battery cell and coupling each post to one strap, one of:
stuffing the battery cells; and pre-stuffing the battery cells.

5 . The method of claim 1 , wherein the performing of the intercell coupling includes:
welding the pair of posts.

6 . The method of claim 1 , wherein the performing of the intercell coupling includes:
electrically coupling the pair of posts to one strap of the plurality of straps.

7 . The method of claim 1 , wherein the performing of the intercell coupling includes:
coupling one strap of the plurality of straps to the pair of battery cells.

8 . The method of claim 1 , wherein the battery includes at least an intercell connector, and the performing of the intercell coupling includes:
coupling the intercell connector to the pair of posts.

9 . The method of claim 8 , wherein the battery further includes a cover, the cover including a pair of openings electrically coupled via the intercell connector, and the method further includes:
inserting the pair of posts through the pair of openings, the inserted pair of posts being electrically coupled via the intercell connector.

10 . The method of claim 1 , wherein the battery is a lead acid battery.

11 . A method for assembling a battery, the battery having a plurality of battery cells, a plurality of straps, and a plurality of posts, the method comprising:
coupling each strap of the plurality of straps to one battery cell of the plurality of battery cells, the coupling of each strap of the plurality of straps to one battery cell of the plurality of battery cells is performed using a first cast-on-strapping, COS, process; coupling each post of the plurality of posts to one strap of the plurality of straps, each one of the coupled posts being electrically coupled to one battery cell corresponding to the one strap, coupling of each post of the plurality of posts to one strap of the plurality of straps is performed using a second COS process; and performing an intercell coupling between at least a pair of battery cells of the plurality of battery cells by coupling a pair of posts of the plurality of posts.

12 . The method of claim 11 , wherein the method further includes, prior to coupling each strap to one battery cell and coupling each post to one strap, one of:
stuffing the battery cells; and pre-stuffing the battery cells.

13 . The method of claim 11 , wherein the performing of the intercell coupling includes:
welding the pair of posts.

14 . The method of claim 11 , wherein the performing of the intercell coupling includes:
electrically coupling the pair of posts to one strap of the plurality of straps.

15 . The method of claim 11 , wherein the performing of the intercell coupling includes:
coupling one strap of the plurality of straps to the pair of battery cells.

16 . The method of claim 11 , wherein the battery includes at least an intercell connector, and the performing of the intercell coupling includes:
coupling the intercell connector to the pair of posts.

17 . The method of claim 16 , wherein the battery further includes a cover, the cover including a pair of openings electrically coupled via the intercell connector, and the method further includes:
inserting the pair of posts through the pair of openings, the inserted pair of posts being electrically coupled via the intercell connector.

18 . A method for assembling a battery, the battery having a plurality of battery cells, a plurality of straps, a plurality of posts, and an intercell connector, the method comprising:
coupling each strap of the plurality of straps to one battery cell of the plurality of battery cells, the coupling of each strap of the plurality of straps to one battery cell of the plurality of battery cells is performed using a first cast-on-strapping, COS, process; coupling each post of the plurality of posts to one strap of the plurality of straps, each one of the coupled posts being electrically coupled to one battery cell corresponding to the one strap, coupling of each post of the plurality of posts to one strap of the plurality of straps is performed using a second COS process; and performing an intercell coupling between at least a pair of battery cells of the plurality of battery cells by coupling a pair of posts of the plurality of posts, the performing of the intercell coupling includes at least one of:
welding the pair of posts;
electrically coupling the pair of posts to one strap of the plurality of straps;
coupling one strap of the plurality of straps to the pair of battery cells; and
coupling the intercell connector to the pair of posts.

19 . The method of claim 18 , wherein the method further includes, prior to coupling each strap to one battery cell and coupling each post to one strap, one of:
stuffing the battery cells; and pre-stuffing the battery cells.

20 . The method of claim 18 , wherein the battery further includes a cover, the cover including a pair of openings electrically coupled via the intercell connector, and the method further includes:
inserting the pair of posts through the pair of openings, the inserted pair of posts being electrically coupled via the intercell connector.

Assignees

• Cps Tech Holdings Llc
• Clarios Germany Gmbh & Co Kg

Inventors

• Greth Torsten
• Zwegers Gerardus C
• Maclachlan Bruce D
• Gramer Gary
• Troxel Jeffrey L
• Fuhr Jason D
• Varatharajah Arunraj
• Balakrishnan Rengaraj
• Liedhegner Joseph E

Classifications

• H01M2010/4271

  Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing · CPC title

• H01M10/4257

  Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries · CPC title

• H01M50/15

  for prismatic or rectangular cells (H01M50/153 takes precedence) · CPC title

• H01M50/507

  comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules · CPC title

• H01M50/54

  Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges · CPC title