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Element for regulating internal gas pressure in lithium-ion cell

A lithium-ion battery, battery cell technology, applied in electrical components, battery pack components, batteries, etc., can solve problems such as applying mechanical pressure

Active Publication Date: 2012-04-11
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, applying mechanical pressure does not look at least not disadvantageous

Method used

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  • Element for regulating internal gas pressure in lithium-ion cell
  • Element for regulating internal gas pressure in lithium-ion cell
  • Element for regulating internal gas pressure in lithium-ion cell

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Embodiment Construction

[0034] figure 1 A prismatic lithium-ion battery cell 1 is shown comprising a housing 2 in which a battery cell roll 3 is located. The battery cell roll 3 includes an electrolyte, a positive electrode and a negative electrode, which are separated from each other by separators. The positive electrode is connected to the positive pole 6 of the battery cell 1 via a current-conducting conductor 4 . The negative electrode is connected to the negative pole 7 of the battery cell 1 via a current-conducting conductor 5 .

[0035] The lithium-ion battery cell 1 comprises a deformable hollow body 9 which is arranged in the interior of the housing 2 between the battery coil 3 and the wall of the housing 2 with the positive pole 6 and the negative pole 7 .

[0036] Figure 2A and 2B A further embodiment of the prismatic lithium-ion battery cell according to the invention is shown in different cross-sectional views. The battery unit 1 includes a case 2 and a battery unit roll 3 . The b...

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Abstract

The invention provides an element for regulating internal gas pressure ina lithium-ion cell. The lithium-ion cell includes a housing, a positive electrode, a negative electrode, and a separator situated between the positive electrode and the negative electrode, which is distinguished by the element for regulating the internal gas pressure, which does not permit discharge of gas from the lithium-ion cell.

Description

technical field [0001] The invention relates to a lithium-ion battery cell, in particular a lithium-ion battery cell having an element for regulating the internal pressure of a gas. Background technique [0002] Li-ion batteries are batteries that work on the basis of lithium ions. Lithium-ion batteries are also known as lithium-ion batteries (Lithium-Ionen-Akku), Li-ion batteries (Li-Ionen-Akku), Li-ion secondary batteries (Li-Ionen-Sekund?rbatterie) or lithium batteries (Lithium-Akkumulator) . The term "battery" denotes an electrical energy store based on an electrochemical system. A battery may consist of one or more rechargeable secondary battery cells. Multiple secondary battery cells can be connected in series to increase the total voltage or in parallel to increase capacity. A lithium-ion battery therefore includes a lithium-ion battery cell or a plurality of lithium-ion battery cells. Lithium-ion battery cells are characterized by high energy density and thermal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/42H01M2/00H01M50/40
CPCY02E60/12H01M10/34H01M2/0217H01M2/022H01M2200/20H01M10/42H01M2/14H01M2/345Y02E60/10H01M50/107H01M50/103H01M50/40H01M50/578Y02P70/50
Inventor I.克尔卡姆N.多尔施
Owner ROBERT BOSCH GMBH