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Interface between jelly roll area of a battery cell and cell can

A technology of battery cartridges and jelly rolls, which is applied to small-sized batteries/battery packs, cylindrical shell batteries/batteries, battery electrodes, etc., and can solve the problems of aggravating the heating and aging of battery cells

Inactive Publication Date: 2021-07-23
TIVENI MERGECO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During operation (e.g., charge-discharge cycles), battery cells will generate heat, which may aggravate the thermal aging of the battery cells

Method used

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  • Interface between jelly roll area of a battery cell and cell can
  • Interface between jelly roll area of a battery cell and cell can
  • Interface between jelly roll area of a battery cell and cell can

Examples

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Embodiment Construction

[0019] Various embodiments of the invention are presented below and in the associated drawings. Alternative embodiments are also conceivable without departing from the scope of the present invention. Additionally, well-known elements will not be described in detail in this summary, or descriptions of these elements will be omitted so as not to obscure the description of details to which this disclosure is meaningful.

[0020] Energy storage systems may rely on batteries to store electricity. For example, in some existing electric vehicle (EV) designs (e.g., full electric vehicles, hybrid electric vehicles, etc.), a battery housing mounted within the electric vehicle houses multiple battery cells (e.g., the battery cells can be Separately installed in the battery case, can also be composed of corresponding battery packs, each battery pack contains a group of battery cells, and each battery pack is installed in the battery case respectively). The battery pack inside the batter...

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PUM

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Abstract

An embodiment is directed to a cylindrical battery cell, comprising a cell can, a jelly roll area of anode electrode, separator, and cathode electrode foils arranged in a middle section of the cell can. The anode electrode foils, the cathode electrode foils, or both extend out of the jelly roll area into an electrolyte area of the cell can. In one embodiment, some of the extended electrode foils are in direct contact with an end (e.g., top or bottom) of the cell can. In another embodiment, the extended electrode foils contact a plurality of connection taps that are thermally and electrically connected to an end (e.g., top or bottom) of the cell can. In another embodiment, the extended electrode foils are bent and stacked so as to function as a foil-integrated connection tap that is thermally and electrically connected to an end (e.g., top or bottom) of the cell can.

Description

[0001] Cross References to Related Applications [0002] This patent application requires Application No. 62 / 730722, Attorney Docket No. TIV-180006P1, filed September 13, 2018, and entitled "Interface between Jelly Roll Area of ​​Battery Cell and Bottom of Battery Canister" of the U.S. Provisional application, which is assigned to the assignee of the present application, the entire content of which is hereby expressly incorporated by reference. technical field [0003] Various embodiments relate to the interface between a battery cell jelly roll region and a battery cell canister. Background technique [0004] Energy storage systems may rely on battery cells to store electricity. During operation (eg, charge and discharge cycles), the battery cells will generate heat, which may aggravate the thermal aging of the battery cells. For battery cells, there is a need to extend their cycle life by reducing the effects of thermal aging. Contents of the invention [0005] One e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/531H01M50/533H01M50/538
CPCH01M10/0422H01M10/0431H01M10/0468Y02E60/10H01M50/107H01M50/545H01M50/538H01M50/533Y02P70/50H01M10/654H01M10/643H01M4/661H01M4/70H01M10/0481
Inventor 海纳·费斯安德里亚斯·特拉克拉尔夫·迈施亚历山大·艾希霍恩约尔格·达马斯克瓦伦汀·布洛克普汉斯-约阿希姆·普夫鲁格克劳斯·杰拉尔德·普夫鲁格
Owner TIVENI MERGECO INC
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