Zelle und Batterie damit

Details

Veröffentlichungs-Nr.

EP4742384

Anmeldetag

6. November 2025

Veröffentlichung

13. Mai 2026

Rechtsraum

EP

Abstract

The present invention provides a cell and a battery having the cell. The cell of the present invention includes a housing, a cap assembly and a wound core. The housing is of an elongated configuration and has an opening at a top end, the cap assembly is encapsulated at the opening of the housing and defines a receiving space together with the housing, and the wound core is adaptively shaped to be accommodated in the receiving space. The cap assembly and the wound core are in direct contact and fixedly connected to each other for direct electrical conduction between the wound core and the cap assembly. In the present invention, a conventional busbar between the wound core and the cap assembly is eliminated, thereby saving space. Under the condition of a constant battery length, this arrangement allows the wound core to be lengthened and the capacity to be increased. As the wound core and the cap assembly are directly conductively connected, an electron transport path is shortened, the internal resistance is reduced, and the battery power supply efficiency is increased.

Anmelder

Firma

Techtronic Cordless GP

Land

🇺🇸 USA