CN112563611A - 一种超薄导热碳纤维复合材料结构电池及其应用 - Google Patents
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Abstract
本发明公开了一种超薄导热碳纤维复合材料结构电池及其应用,包括上下面板、复合材料格栅板、电池单元、缓冲硅胶垫和散热蜂窝;所述上下面板和复合材料格栅均采用超薄导热碳纤维复合材料制成;所述的复合材料格栅内部用于放置电池单元;所述的电池单元的上下表面涂抹有散热硅胶并设置有缓冲硅胶垫;所述的电池单元四周设置有散热蜂窝结构。本发明利用了超薄碳纤维复合材料优异性能,具有良好的承载性能,同时电池上下表面设置有缓冲硅胶垫,在遇到冲击碰撞时可起到良好的吸能、缓冲作用,提高了电池在发生冲击或者挤压时的安全性。
Description
技术领域
本发明属于电池领域,其具体涉及一种超薄导热碳纤维复合材料结构电池及其应用。
背景技术
目前纯电动汽车越来越普及,电动汽车因电池热失控而发生自燃事件时有发生,电池安全问题已成为现在的主流话题,所以提高电池的安全性刻不容缓。结构电池是将复合材料结构件和电池集成到一起,它综合了复合材料和电池的特点,除了可以承受应力和应变外,还可以储存电能。
随时对碳纤维复合材料的深入研究,其作为一种性能优异的新材料,具有优异的导电性、化学惰性、耐蚀性、耐温性等特性,它的密度较小、比强度和比模量高。另外复合材料本身可设计性较强,利用碳纤维优异的力学性能,将超薄导热碳纤维复合材料制成结构电池,能有效地减少质量,增加储能系统的安全性,提高系统整体的性能。
发明内容
基于目前电池行业良好的发展状况,同时为了轻量化和提高行驶安全性,本发明提出了一种超薄导热碳纤维复合材料结构电池及其应用。
本发明采用的技术方案为:一种超薄导热碳纤维复合材料结构电池,包括上下面板、复合材料格栅板、电池单元、缓冲硅胶垫和散热蜂窝;所述上下面板和复合材料格栅均采用超薄导热碳纤维复合材料制成;所述的复合材料格栅内部用于放置电池单元;所述的电池单元的上下表面涂抹有散热硅胶并设置有缓冲硅胶垫;所述的电池单元四周设置有散热蜂窝结构。
进一步,所述超薄导热碳纤维复合材料,厚度为0.02mm,碳纤维含量为60%,导热系数>1.07W/(m.℃)。
进一步,所述缓冲硅胶垫厚度为0.5mm,所述散热蜂窝结构的厚度为1mm。
进一步,所述复合材料格栅板上设置有线槽,用于内部电池的线路连接。
进一步,所述上下面板和复合材料格栅板之间采用胶结和/或铆钉连接。
本发明另一实施例提供的技术方案如下:
一种超薄导热碳纤维复合材料结构电池的应用,所述结构电池应用于水陆两栖小车和多旋翼无人机。
与现有技术相比,本发明的有益效果在于:
(1)在本发明中,内部电池单元的上下表面涂抹有散热硅胶,四周设置有散热蜂窝结构,辅助电池完成散热,提高电池散热性能。
(2)本发明利用了超薄碳纤维复合材料优异性能,具有良好的承载性能,同时电池上下表面设置有缓冲硅胶垫,在遇到冲击碰撞时可起到良好的吸能、缓冲作用,提高了电池在发生冲击或者挤压时的安全性。
附图说明
图1为复合材料格栅板结构图;
图2为电池单元的拆分图;
图3为水陆两栖小车的结构图;
图4为图3中电池的内部连接图;
图5为多旋翼无人机的结构图;
图6为图5中电池的内部连接图。
具体实施方案
下面结合附图对本发明进行详细说明。
如图1、图2所示,本发明是一种超薄导热碳纤维复合材料结构电池,包括上下面板1、复合材料格栅板2、散热蜂窝4、电池单元5和缓冲硅胶垫6。本发明采用将电池单元5安装在复合材料格栅板2中,用于对电池的定位,电池单元5四周放置有散热蜂窝4,可以加速电池散热,同时电池单元5上下表面涂抹有散热硅胶和缓冲硅胶垫6,加快电池散热速率的同时,还可以起到吸能、缓冲作用,提高电池安全性,最后将上下面板1和复合材料格栅板2之间进行胶结连接加固,并从电池单元5的一端引出电池正负引脚3。本发明中采用的超薄导热碳纤维复合材料,在同等力学性能下,壁厚减少了20%,质量减少了15~20%。
本发明中的复合材料结构电池可应用于水陆两栖小车,也可用于多旋翼无人机,以下以应用于水陆两栖小车为例进行详细说明。
实施例1:
水陆两栖小车包括轮胎101、底仓102、结构电池103、控制仓104和前端倾斜面105,如图3所示,结构电池103的安装在底仓102上方,轮胎101安装在底仓102两侧,控制仓104设置在结构电池103上。底仓102的正向前进方向上设有前端倾斜面105。
在本实施例中,结构电池103的上下面板厚度为1mm,复合材料格栅板厚度为5mm,电池单元5采用锂聚合物电池303048,连接方式采用三个电池串联,三组并联的方式进行连接,九块锂聚合物电池在同一水平面上排布,电池连接方式如图4所示。结构电池整体尺寸为190×135×7mm,质量为238g,作为水陆两栖小车的动力系统和承载元件,极大的减轻了无人小车的质量,提高了无人小车的整体性能。
以下以应用于多旋翼无人机为例进行详细说明。
实施例2:
多旋翼无人机包括结构电池201、展臂202、电机203、螺旋桨204和控制仓205,如图5所示。臂展202分别安装在结构电池201上的四个方向,展臂202的端部均设有电机203,并通过电机203带动螺旋桨204转动,控制仓205设置在结构电池201上。
结构电池201的上下面板厚度为0.5mm,复合材料格栅板厚度4mm,电池单元5采用锂聚合物电池304070,连接方式采用两块电池串联,两块锂聚合物电池在同一水平面排布,电池连接方式见图6。结构电池整体尺寸100×100×6mm,质量为110g,作为无人机的主板和动力系统,减轻了无人机的重量,提高了续航里程。
实施例3:
与实施例1、2不同的是,超薄导热碳纤维预浸料中纤维体积分数可以为40%、50%或70%等,纤维可以是PAN系碳纤维、沥青系碳纤维和黏胶纤维。
实施例4:
与实施例1、2不同的是,电池单元不局限锂聚合物电池,可以为纽扣电池或者锂离子电池等。
实施例5:
与实施例1、2不同的是,结构电池整体尺寸、复合材料格栅板的形状、上下面板的厚度以及内部电池连接方式可以根据具体应用情况进行更改。
最后需说明的是,以上者仅系本发明部分实施例,并非用以限制本发明,依据本发明的结构及特征,稍加变化修饰而成者,亦应包括在本发明范围之内。
Claims (6)
1.一种超薄导热碳纤维复合材料结构电池,其特征在于:包括上下面板、复合材料格栅板、电池单元、缓冲硅胶垫和散热蜂窝;所述上下面板和复合材料格栅均采用超薄导热碳纤维复合材料制成;所述的复合材料格栅内部用于放置电池单元;所述的电池单元的上下表面涂抹有散热硅胶并设置有缓冲硅胶垫;所述的电池单元四周设置有散热蜂窝结构。
2.根据权利要求1所述的一种超薄导热碳纤维复合材料结构电池,其特征在于:所述超薄导热碳纤维复合材料,厚度为0.02mm,碳纤维含量为60%,导热系数>1.07W/(m.℃)。
3.根据权利要求1所述的一种超薄导热碳纤维复合材料结构电池,其特征在于:所述缓冲硅胶垫厚度为0.5mm,所述散热蜂窝结构的厚度为1mm。
4.根据权利要求1所述的一种超薄导热碳纤维复合材料结构电池,其特征在于:所述复合材料格栅板上设置有线槽,用于内部电池的线路连接。
5.根据权利要求1所述的一种超薄导热碳纤维复合材料结构电池,其特征在于:所述上下面板和复合材料格栅板之间采用胶结和/或铆钉连接。
6.根据权利要求1-5任意一项所述的一种超薄导热碳纤维复合材料结构电池的应用,其特征在于:所述结构电池应用于水陆两栖小车和多旋翼无人机。
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