Verfahren zur Zellbildung
Anmelder: Contemporary Amperex Technology Co., Limited 🇨🇳
Details
- Veröffentlichungs-Nr.
- EP4822813
- Anmeldetag
- 21. August 2024
- Veröffentlichung
- 10. Juli 2025
- Rechtsraum
- EP
- IPC
- H01M10/44
Abstract
Provided in the present application is a cell formation method, comprising the following steps: dividing cells into a control sample cell and a cell to be tested; subjecting the control sample cell to electrolyte filling and standing, then performing formation with an injection port being in an open state, and on the basis of the amount of gas generated during the formation process of the control sample cell and the charging SOC of the control sample cell, constructing a gas production curve of formation; dividing the obtained curve into three consecutive segments, wherein the cumulative amount of gas generated during the formation process corresponding to a first segment of the curve accounts for 1% of the total gas amount of the formation process, the cumulative amount of gas generated during the formation process corresponding to a third segment of said curve accounts for 1% of the total gas amount of the formation process, the charging SOC of the cell corresponding to a connection point between the first segment of said curve and a second segment of said curve is taken as a gas production initial SOC, and the charging SOC of the cell corresponding to a connection point between the second segment of said curve and the third segment of said curve is taken as a gas production cutoff SOC; and on the basis of the gas production charging SOC and the gas production cutoff SOC, performing formation on the cell to be tested that has been subjected to electrolyte filling and standing.
Anmelder
- Firma
- Contemporary Amperex Technology Co., Limited
- Land
- 🇨🇳 China
Chinesisches Unternehmen mit Sitz der Konzerngesellschaft in Hongkong, das Batteriezellen und Energiespeicherlösungen für Elektrofahrzeuge und Stromnetze entwickelt und herstellt.
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Fachgebiete
Maucher Jenkins ist eine anglo-deutsche IP-Kanzlei mit britischen Wurzeln bis 1937, entstanden 2016 durch Zusammenschluss mit dem Freiburger Haus. Präsent in Deutschland, Großbritannien, der Schweiz und China, als Brücke zwischen den Rechtsräumen.