Hilti Aktiengesellschaft

Matthias Lepiorz

Robert Stanger

Moses Ender

Bernd Ziegler

Klaus Hauser

Kathrin Sax

Nora Martiny

A rechargeable battery pack having at least one pouch cell, wherein the rechargeable battery pack has at least one electrically conductive filament which surrounds the pouch cell at least in sections in such a way that expansion of the pouch cell causes severing of the filament.

Safety mechanism for rechargeable battery pack with pouch cells

Pouch cell having a positive contact lug and a negative contact lug, in which contact lugs electrical contact can be made with the pouch cell pouch cell and the pouch cell can be charged and discharged in this way, wherein the pouch cell is of planar design and has a flat cell surface which extends parallel in relation to the positive contact lug and the negative contact lug, wherein the positive contact lug has an upper positive connecting element and a lower positive connecting element, which positive connecting elements are arranged on opposite sides of the positive contact lug, and the negative contact lug has an upper negative connecting element and a lower negative connecting element, which negative connecting elements are arranged on opposite sides of the negative contact lug.

Pouch cell stack

Pouch cell having a positive contact region and a negative contact region, by which contact regions electrical contact can be made with the pouch cell and the pouch cell can be charged and discharged in this way, wherein the pouch cell is of planar design and has a cell top side as well as a cell bottom side which is situated opposite the cell top side, wherein the positive contact region is located exclusively on the cell top side and the negative contact region is located exclusively on the cell bottom side, or vice versa.

Growing community of inventors

Chemnitz, Germany

Matthias Lepiorz