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Battery sheath having radiation layer formed thereon and lithium polymer battery using the same

一种锂聚合物电池、电池外壳的技术，应用在电池盒/外套、电池、二次电池等方向，能够解决易破裂、穿透短路、电池起火等问题，达到改善机械强度、增加抗腐蚀性以及抗冲击性的效果

Active Publication Date: 2006-05-24
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, if the battery casing is bitten by a pet, it can easily break
In addition, penetration of the battery case by the sharp object can cause a short circuit if the object touches the inner electrode assembly
As a result, the battery may catch fire or explode

Method used

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  • Battery sheath having radiation layer formed thereon and lithium polymer battery using the same
  • Battery sheath having radiation layer formed thereon and lithium polymer battery using the same
  • Battery sheath having radiation layer formed thereon and lithium polymer battery using the same

Examples

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Embodiment Construction

[0032] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In the following description and drawings, the same reference numerals are used to designate the same components to avoid repeated descriptions of the same or similar components.

[0033] Figure 1A is a perspective view of a battery housing according to one embodiment of the present invention, Figure 1B for Figure 1A An enlarged cross-sectional view of the battery case. Such as Figure 1A and 1B As shown, the battery case 110 includes a metal layer 111 , a heat dissipation layer 112 and a cast polypropylene (CPP) layer 113 .

[0034] The metal layer 111 has a first surface 111a and a second surface 111b. The thickness of the metal layer 111 is approximately about 20 to about 100 μm. If the thickness of the metal layer 111 is less than about 20 μm, it may be easily broken or damaged during processing. If the thickness of the metal layer 111 i...

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Abstract

The present invention provides a battery case having a heat dissipation layer on its surface and a lithium polymer battery using the battery case. The heat dissipation layer can improve the heat dissipation and mechanical strength of the battery, and can also improve the responsiveness of the PTC device. The battery case includes a metal layer having first and second surfaces, a heat dissipation layer on the first surface of the metal layer, and a cast polypropylene (CPP) layer on the second surface of the metal layer. The lithium polymer battery has a PTC device electrically connected to the protection circuit module. The PTC device directly contacts the heat dissipation layer of the battery casing, thereby improving the responsiveness of the PTC device.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefits from Korean Patent Application No. 10-2004-0083275 filed with the Korean Intellectual Property Office on October 18, 2004, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a battery sheath including a heat dissipation layer and a lithium polymer battery using the battery sheath. More specifically, the present invention relates to a battery housing that can improve the heat dissipation performance of lithium polymer batteries and the response of positive temperature coefficient (PTC) devices to temperature increases. Background technique [0004] As known in the art, a lithium polymer battery refers to a battery having an electrode assembly including a separator interposed between positive and negative plates. The separator performs the role of the electrolyte, ie it acts as a medium for ion conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/05H01M10/052H01M10/0565H01M10/0587H01M10/60H01M10/613H01M10/647H01M10/653H01M50/117H01M50/119H01M50/121H01M50/122H01M50/126H01M50/129H01M50/133H01M50/136
CPCB32B3/26B32B5/16B32B15/06B32B15/08B32B15/085B32B15/16B32B15/18B32B15/20B32B25/20B32B27/32B32B2250/03B32B2260/025B32B2260/046B32B2264/102B32B2264/107B32B2307/206B32B2307/302B32B2307/54B32B2307/714B32B2457/10H01M6/181H01M10/052H01M10/0525H01M10/0565H01M2200/106Y10T428/31692Y02E60/10H01M50/124Y02P70/50H01M50/126H01M50/133H01M50/121H01M50/129H01M50/136H01M50/117H01M50/122H01M50/119
Inventor 吴正元孙荣培
Owner SAMSUNG SDI CO LTD
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