High throughput extraction of battery cell formation gas

    公开(公告)号:US12051786B2

    公开(公告)日:2024-07-30

    申请号:US17543864

    申请日:2021-12-07

    IPC分类号: H01M10/42 G01N1/22 G01N33/00

    摘要: Aspects of the disclosure include degas equipment and degassing process schemes for providing high throughput extraction of battery cell formation gas. An exemplary method can include loading a battery cell in a sampling chamber of a degas station and creating an opening in the battery cell to release formation gas. A first portion of the formation gas can be routed to a collection chamber of the degas station while the formation gas is prevented from venting. After routing the first portion of the formation gas to the collection chamber, a second portion of the formation gas can be vented until degassing is complete. The first portion of the formation gas can be diluted with a dilution fluid and the diluted first portion of the formation gas can be routed to a cell quality control gas manifold configured to measure battery cell formation gas compositions.

    Gas detector calibration cap with an extended strip

    公开(公告)号:US11867674B2

    公开(公告)日:2024-01-09

    申请号:US17278566

    申请日:2018-10-02

    IPC分类号: G01N33/00

    CPC分类号: G01N33/0006 G01N33/0009

    摘要: Provided are methods, systems, and apparatus related to a gas detector (100, 402, 802) and a gas detector calibration cap (200, 300, 404, 703, 804). The gas detector calibration cap includes a cap body (202, 302), a first cap wing (204, 304), a second cap wing (206, 306), and an extended strip (216, 316) for opening the gas detector by inserting the extended strip in a groove (106, 707, 808) of the gas detector. The extended strip allows a worker to easily open the gas detector housing, thus improving the speed and reliability of servicing the gas detector while eliminating the potential additional cost on a separated tool for opening the gas detector housing.