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A graphene battery thermal management device

A battery thermal management and graphene technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of no low-temperature heat preservation function and low cooling efficiency of micro-channels, achieve low-temperature heat preservation temperature difference, reduce temperature difference, The effect of increasing fitness

Active Publication Date: 2019-03-15
JIANGSU UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Chinese patent CN 102709618A discloses a micro-channel cooling uniform temperature system for lithium battery heat dissipation, the micro-channel cooling efficiency is low, and there is no low-temperature heat preservation function

Method used

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  • A graphene battery thermal management device
  • A graphene battery thermal management device
  • A graphene battery thermal management device

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Experimental program
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Effect test

Embodiment

[0023] Such as figure 1 As shown, a graphene battery thermal management device includes several battery cells 1, graphene film 2 and automatic heat dissipation insulation grid 3; some of the battery cells 1 form a battery pack, and the middle part of the graphene film 2 and the The battery cell 1 housing contacts, such as figure 2 As shown, the automatic heat dissipation heat preservation grid 3 includes a heat dissipation grid 31 and a heat dissipation contact 33. The heat dissipation grid 31 is arranged on the grid base 32, and the heat dissipation contact 33 is arranged on the contact base 34. The grid base 32 is fixedly connected to the contact base 34, and a cavity for accommodating the heat dissipation contact 33 is arranged between the two, and the two ends of the graphene film 2 are bonded to the contact base 34 The thermally conductive adhesive material of the layer 35 is bonded. In this embodiment, the thermally conductive adhesive material is thermally conductive ...

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Abstract

The invention relates to a battery pack heat management device, particularly an electromobile graphene power battery pack heat management system. The graphene battery heat management device comprises a plurality of battery cells, graphene films and automatic heat-dissipation thermal-insulation grids, wherein the battery cells form a battery pack; the middle part of each graphene film contacts the shell of each battery cell; each automatic heat-dissipation thermal-insulation grid comprises a heat-dissipation grid and a heat-dissipation contact head; both ends of each graphene film are respectively connected with the two heat-dissipation contact heads; a clearance is arranged between the heat-dissipation contact heads; and when the heat-dissipation contact heads are heated to expand, the heat-dissipation contact heads contact the heat-dissipation grids. The graphene battery heat management device can perform the functions of implementing thermal insulation on the battery pack at low temperature and reducing the temperature difference among the battery cells; as the temperature changes, the heat-dissipation contact heads contact or deviate from the grid bases; and when the heat-dissipation contact heads are made from different materials, the contact temperature spot between the heat-dissipation contact head and grid base is different, thereby widening the adaptability of the graphene battery heat management device.

Description

technical field [0001] The invention relates to a battery thermal management device, especially a graphene power battery pack thermal management system for an electric vehicle, which comprehensively uses self-fusing structure, graphene, heat dissipation grids, etc. to conduct comprehensive system thermal management on the electric vehicle battery pack, so as to The battery pack is used in different temperature ranges, all-weather. Background technique [0002] In recent years, power batteries have gradually become the mainstream power source for electric vehicles. In electric vehicles, multiple battery cells are usually connected in series or in parallel in different forms to form a battery device to provide the required voltage and capacity. Due to the complex internal chemical reaction of the battery during the charging and discharging process, accompanied by heat generation, especially for a device composed of multiple battery cells, the temperature accumulates faster, c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/653H01M10/6551H01M10/635
CPCH01M10/613H01M10/615H01M10/625H01M10/635H01M10/653H01M10/6551Y02E60/10
Inventor 李波周亭贝绍轶郑焱倪彰
Owner JIANGSU UNIV OF TECH
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