Lithium battery pack utilizing phase-change material to realize temperature control

A phase change material and temperature control technology, which is applied to battery pack components, secondary batteries, circuits, etc., can solve the problem of uneven heat conduction, improve performance, facilitate miniaturization and improve design, and occupy less space.

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A phase change material and temperature control technology, which is applied to battery pack components, secondary batteries, circuits, etc., can solve the problem of uneven heat conduction, improve performance, facilitate miniaturization and improve design, and occupy less space.

CN105826499AInactive Publication Date: 2016-08-03ZHENGZHOU YUTONG BUS CO LTD

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Embodiment Construction

[0027] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] The specific embodiment of the lithium battery pack utilizing phase change material to realize temperature control provided by the present invention, such as Figure 1 to Figure 6 As shown, the lithium battery pack includes a lower case 1 and an upper case 2 that are hermetically assembled to form an inner cavity, and a partition plate 13 is arranged in the inner cavity to divide the inner cavity into an upper cavity and a lower cavity, The lower cavity is a sealed cavity, and a plurality of lithium batteries 11 are fixedly arranged in the sealed cavity through the battery holding structure, and each lithium battery 11 is respectively coated with a heat conductor to form a lithium battery unit. The heat conductor in this embodiment Specifically, it is a heat-conducting film, which is in the form of thermosetting colloid. The surface of the battery...

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Abstract

The invention relates to a lithium battery pack utilizing a phase-change material to realize temperature control. The lithium battery pack comprises a sealing chamber, wherein a plurality of lithium batteries are fixedly arranged in the sealing chamber through a battery holding structure; the sealing chamber is filled with the phase-change material used for performing temperature control on the lithium battery; heat conductors are respectively cladded on the lithium batteries so as to form lithium battery units; the gap between any adjacent lithium battery units and the gap between the lithium battery units and the inner chamber walls of the sealing chamber are filled with the phase-change material respectively. The heat conductors are respectively cladded on the lithium batteries, so that the heat radiated from each lithium battery is transferred to the phase-change material through the heat conductors, and the problems of local heat conduction and uneven radiation are avoided.

Description

technical field [0001] The invention relates to a lithium battery group which utilizes a phase change material to realize temperature control. Background technique [0002] With the development of new energy vehicles and energy storage technology, power battery technology is also improving. At present, ternary lithium batteries have become one of the mainstream power batteries due to their advantages such as high specific energy, high voltage platform, good cycle performance, no memory effect, environmental protection and pollution-free. As an advanced battery, ternary lithium battery not only has much higher energy density than traditional batteries such as lead-acid and nickel metal hydride, but also higher than lithium iron phosphate and other types of lithium batteries. But at the same time, the ternary lithium battery is also more sensitive to temperature. Only in a certain temperature range can the balance of performance, life and safety be obtained. Therefore, the te...

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Application Information

Patent Timeline

03 Aug 2016

Publication

CN105826499A

IPC: H01M2/10; H01M10/613; H01M10/617; H01M10/653; H01M10/659; H01M50/204

CPC: H01M10/613; H01M10/617; H01M10/653; H01M10/659; H01M50/20; Y02E60/10

Inventors: 李小尹; 周时国