Small battery cell

Details Small battery cell Small battery cell

H - Electricity

01

M

H01M 10/02 (2006.01) H01M 2/12 (2006.01) H01M 2/34 (2006.01) H01M 2/36 (2006.01) H01M 10/04 (2006.01)

Patent

CA 2194490

A small battery cell (10) including a frangible pressure relief (42) and spring (36) disengagement device which vents various internal pressures to the atmosphere to prevent cell (10) bulging or explosion, and also which internally interrupts current flow through the cell (10) due to internal cell (10) over heat, excessive current flow or the like. Internal reconnection of cell members reoccurs subsequent to internal thermal or other internal abnormalities. Alternate embodiments illustrate an apparatus and method for vacuum assisted filling and an apparatus for vacuum sealing of the small battery cell (10).

Elément de batterie de petite dimension (10) comprenant un dispositif de libération à ressort (36) et à élément (42) de surpression frangible, qui dégage les différentes pressions internes vers l'atmosphère afin d'empêcher que l'élément (10) ne se gonfle ou n'explose, et qui, à l'intérieur de l'élément (10), interrompt la circulation de courant à travers ce dernier suite à une surchauffe interne, à une circulation excessive de courant ou toute autre anomalie dans l'élément (10). Le raccordement interne des parties de l'élément se rétablit après que des anomalies internes thermiques ou autres soient survenues. Selon d'autres modes de réalisation, un appareil et un procédé destinés au remplissage assisté par vide sont décrits, ainsi qu'un appareil de scellement sous vide d'un élément de batterie (10) de petite dimension.

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