Battery Cell for a Battery, Especially for a Traction Battery

A technology for battery packs and electric vehicles, which is applied to battery pack components, small-sized batteries/battery packs, and large-sized batteries/battery packs, etc., and can solve problems such as high capillary action, increased inaccuracy and tightness, etc. , to achieve a durable and reliable sealing effect

Active Publication Date: 2015-12-23
HOPPECKE BATTERY SYST (WUHAN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A particular difficulty here is the relatively high capillary action associated with the sulfuric acid, so that the electrolyte also slowly penetrates the smallest cracks and crevices over time
As a result, possible inaccuracies in the abutment of the sealing ring on the associated connecting pole come into play correspondingly with increased leakiness

Method used

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  • Battery Cell for a Battery, Especially for a Traction Battery
  • Battery Cell for a Battery, Especially for a Traction Battery
  • Battery Cell for a Battery, Especially for a Traction Battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] figure 1 A plurality of cross-sectional views of the battery cell 1 according to the present invention are schematically shown.

[0041] The battery cell 1 has a casing 2. The housing has, on the one hand, a housing box 4 and a housing cover 5 that closes the housing box 4 in a fluid-tight manner in the final assembled state. The housing box 4 and the housing cover 5 are preferably welded to each other.

[0042] An electrode sheet stack 3 is provided in the housing 2. The electrode sheet stack is composed of positive electrode sheets 6 arranged alternately on the one hand and negative electrode sheets 7 on the other hand. The electrode sheet 6 or 7 has a connecting tab on the cover side, wherein the positive electrode sheet 6 provides the tab 8 and the negative electrode sheet 7 provides the tab 9. By means of the corresponding common bridge 10 or 11, the tabs 8 or 9 are electrically coupled to each other. Each bridge 10 or 11 carries a connecting pole 12 or 13, wherein ...

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PUM

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Abstract

The invention relates to a battery cell for a battery, especially for a traction battery. The battery cell has an electrode plate pack arranged in a casing and provided with a terminal of lead material that extends through a cover opening of the casing cover of the casing. A plastic material cap is placed onto the terminal. The cap has an inner side provided with a circumferentially extending shoulder and an exterior side provided with a circumferentially extending support web. A sealing element is arranged at the inner side of the cap between cap and terminal and is positionally fixed by the circumferentially extending shoulder. The casing cover rests on the circumferentially extending support web. Cap and casing cover are welded to each other. A threaded sleeve of nonferrous metal is embedded in the lead material of the terminal and is aligned with an insertion opening of the cap. The threaded sleeve receives a connecting screw to be passed through the insertion opening.

Description

Technical field [0001] The present invention relates to a battery pack battery for a battery pack, especially an electric vehicle battery pack. The battery pack battery has a casing box opened on one side and a casing fluid-tightly closing the sides of the opened casing box The cover also has an electrode sheet stack arranged in the casing box, the electrode sheet stack has a connecting pole, and the connecting pole is gripped through an opening provided by the shell cover. Background technique [0002] On the one hand, battery cells of the aforementioned type and on the other hand electric vehicle battery packs having a plurality of battery cells electrically connected to each other are well known in the prior art, so no special documentation is required here. [0003] As a non-stationary battery, electric vehicle battery packs are usually used in vehicle technology, such as forklifts, crane trucks and / or similar vehicles. The prior-known electric vehicle battery pack has a plura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M2/04H01M2/08H01M2/20H01M50/103H01M50/147H01M50/176H01M50/186H01M50/193H01M50/50H01M50/55H01M50/553H01M50/567
CPCH01M50/147H01M50/50H01M50/553H01M50/193H01M50/186H01M50/55H01M50/176H01M50/103H01M50/567H01M2220/20Y02E60/10H01M50/15
Inventor 海因里希·凯斯皮尔
Owner HOPPECKE BATTERY SYST (WUHAN) CO LTD
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