Lithium-ion cell, lithim-ion rechargeable battery and motor vehicle with a lithium-ion rechargeable battery

Abstract

What is described is: a lithium-ion cell with outgoing conductor foils and collectors. The outgoing conductor foil (15) of the negative electrode of the lithium-ion cell consists of an aluminium foil (16) which is covered on both sides with a metal layer (17), and the collector (10) for the negative electrode has an aluminium workpiece (14), which is at least partially covered with a metal layer (13). The metal layers (17, 13) of the outgoing conductor foil (15) and of the collector (10) consisting of copper or nickel. Also proposed are: a lithium-ion rechargeable battery and a motor vehicle with a lithium-ion rechargeable battery.

Description

technical field [0001] The invention relates to a lithium-ion cell, a lithium-ion accumulator with at least two lithium-ion cells, and a lithium-ion accumulator with an electric drive motor for driving a motor vehicle and a lithium-ion battery connected or connectable to the electric drive motor Batteries of motor vehicles. Background technique [0002] Li-ion cells have at least one positive electrode and one negative electrode (cathode and anode), which can reversibly intercalate (store) or deintercalate (release) lithium ions (Li+) again. The terms lithium-ion cell, lithium-ion polymer cell, lithium-ion cell, lithium-ion battery, lithium-ion battery, and lithium-ion battery system are used largely synonymously. [0003] Especially in the automotive sector, high demands are placed on lithium-ion batteries with regard to their energy density per unit weight (in Wh / kg), in order, for example, to achieve the largest possible range of travel for motor vehicles driven by elect...

AI Technical Summary

Problems solved by technology

[0007] The use of copper or nickel as inactive materials in Li-ion cells increases production costs

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