CN112038510A - 电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品及其制造方法 - Google Patents
电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品及其制造方法 Download PDFInfo
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Abstract
本发明公开了一种电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品及制造方法,二氧化硅气凝胶毡层的各个表面均有硅胶防火布层包覆连接,所述包覆开口处通过高硅氧线连接;制造方法包括模切二氧化硅气凝胶毡,并在其各表面均包覆硅胶防火布;包覆封装处用高硅氧线连接。通过上述方式,本发明保持了二氧化硅气凝胶毡制品极低的导热系数,解决了二氧化硅气凝胶毡制品掉粉污染问题,应用后使得新能源汽车达到要求的UL94的V0级不燃的性能指标;该制品具备了一定的材料强度,满足了新能源汽车的电动汽车锂离子动力蓄电池工程技术应用的要求;制备成本低,适合于大批量的自动化制造,产品质量一致性好。
Description
技术领域
本发明涉及一种电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品及其制造方法。
背景技术
新能源汽车正在影响着全球的汽车市场发展。随着传统燃料汽车禁售的政策被提上日程,新能源汽车的重要性也在不断地提高。虽然纯电力汽车,相对于传统汽车来说很环保,但是其自身的弊病也越来越被更多人们熟知——容易发生自燃。据不完全统计2018年发生新能源汽车起火50余起,大部分事故原因是电池电路出现问题引发的起火,火势由电池仓一路蔓延至整车最终只留下一具车架。
目前有些企业对上述问题研究出一些解决办法,就是利用二氧化硅气凝胶毡的特性,但基于对气凝胶毡的特性了解的不透,对气凝胶毡简单处理,使用在电动汽车电池包内,这就为电动汽车安全可靠性带来了严重的隐患。
例如,为解决二氧化硅气凝胶毡掉粉和短纤维问题,是直接在二氧化硅气凝胶毡包覆涂胶粘剂或涂料,涂胶粘剂或涂料一般多是用醋酸乙脂、DMF溶剂、丙酮、甲苯、二甲苯、酒精、水等稀释,在二氧化硅气凝胶毡包覆涂布的过程中,这些醋酸乙脂、DMF溶剂、丙酮、甲苯、二甲苯、酒精、水等溶剂同时也渗透进了二氧化硅气凝胶的纳微孔里了,从而严重影响了二氧化硅气凝胶的绝热保温的微观形态,部分二氧化硅气凝胶的纳微孔中静止的空气被这些溶剂替换,这部分含有溶剂的二氧化硅气凝胶增加了导热能力,反而增加了二氧化硅气凝胶毡导热系数。
发明内容
本发明主要解决的技术问题是提供一种能够解决二氧化硅气凝胶毡制品掉粉污染问题,又能使新能源汽车达到UL94的V0级不燃的性能指标的电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品及其制造方法。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品,包括:硅胶防火布层和二氧化硅气凝胶毡层,所述二氧化硅气凝胶毡层的各个表面均有硅胶防火布层包覆连接,所述包覆开口处通过高硅氧线缝合连接或粘结连接。
在本发明一个较佳实施例中,该制品设置于各电池芯之间、各电池模组之间或设于各电池芯之间和各电池模组之间。
在本发明一个较佳实施例中,该制品为隔离层,设于电池仓和其他空间仓之间。
为解决上述技术问题,本发明采用的另一个技术方案是:提供一种电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品的制造方法,其特征在于,包括以下步骤:
1)准备硅胶防火布和二氧化硅气凝胶毡;
2)模切二氧化硅气凝胶毡,并在其各表面均包覆硅胶防火布;
3)包覆封装处用高硅氧线缝合或粘结。
在本发明一个较佳实施例中,二氧化硅气凝胶毡的是以有机预氧丝纤维或无机纤维为基材,以纳米二氧化硅气凝胶为填充物,经常压法、微波、冷冻或超临界法干燥后,最后制得强度增强的二氧化硅气凝胶毡。
在本发明一个较佳实施例中,所述无机纤维包括高硅氧玻璃纤维、玻璃纤维、陶瓷纤维、硅酸铝纤维、氧化铝纤维、凯夫拉纤维或碳纤维。
在本发明一个较佳实施例中,硅胶防火布是以耐高温、防腐、高强的玻璃纤维布,经有机硅橡胶压延或浸渍而成。
在本发明一个较佳实施例中,采用该制造方法制造的制品的应用环境温度范围为-40℃~280℃。
本发明的有益效果是:电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品的保持了二氧化硅气凝胶毡制品极低的导热系数,解决了二氧化硅气凝胶毡制品掉粉污染问题,应用后使得新能源汽车达到要求的UL94的V0级不燃的性能指标;该制品具备了一定的材料强度,满足了新能源汽车的电动汽车锂离子动力蓄电池工程技术应用的要求;制备成本低,适合于大批量的自动化制造,产品质量一致性好。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图,其中:
图1是本发明电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品一较佳实施例的结构示意图。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
请参阅图1,本发明实施例包括:
一种电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品,包括:硅胶防火布层2和二氧化硅气凝胶毡层1,所述二氧化硅气凝胶毡层1的各个表面均有硅胶防火布层2包覆连接,所述包覆开口处通过高硅氧线缝合连接或粘结连接。
其中,硅胶防火布是以耐高温、防腐、高强的玻璃纤维布,经有机硅橡胶压延或浸渍而成,是一种高性能、多用途的复合材料新产品。已被广泛应用于航天、化工、石油、大型发电设备、机械、冶金、电气绝缘、建筑等领域。
硅胶防火布主要性能、特点包括:
(1)用于低温-70℃到高温280℃之间,保温性能好。
(2)耐臭氧、氧、光及气候老化,野外使用耐候性优良,寿命可达10年。
(3)具有高绝缘性能,介电常数3-3.2,击穿电压20-50KV/MM 。
(4)耐化学腐蚀性能好;抗油,防水[可擦洗]。
(5)强度高;既柔软又有韧性,可剪裁加工。
主要用途包括:
a.电气绝缘:硅胶布具有较高的电绝缘等级,可承受高电压负荷,可制成绝缘布、套管等产品。
b.非金属补偿器:硅胶布可作管道的柔性连接器件,它可以解决热胀冷缩对管道的破坏,硅胶布具有较高的耐温性,防腐性,抗老化性能,弹性及柔性良好,可广泛应用于石油,化工,水泥,能源等领域。
c.防腐方面:硅橡胶涂覆玻璃纤维布,可作为管道,储蓄的内外防腐层,防腐性能优良,强度高,是一种理想的防腐材料。
d.其它领域:硅橡胶涂覆玻璃纤维膜结构材料可应用于建筑密封材料,高温防腐输送带,包装材料等领域。
高硅氧缝纫线性能特点包括:
(1)软化点接近1700℃,可长期在900℃环境下使用,瞬间可以耐数千度的气流部刷。
(2)在有机和无机酸中(氢氟酸、磷酸和盐酸除外)甚至在高温下,以及弱碱中保持良好的性能稳定。
(3)对热冲击和超高辐射有较高的稳定性,在高温和高湿条件绝缘性能优良,与高温胶具有良好的黏结性能。
(4)耐湿耐日光辐射并且抗震,可用于各种密封材料,制品结构牢固,在许多高温条件下保持柔软性。
(5) 结构及性能稳定,对人体没有危害,可代替陶瓷纤维和石棉纤维(高温下发生晶相转变)。
(6)防火温度高,在汽油中燃烧不氧化、不变色,强度高,不会造成二次污染。
(7)具有良好的耐磨性与绝缘性能,大多数情况下价格具有竞争优势。
该制品设置于各电池芯之间、各电池模组之间或设于各电池芯之间和各电池模组之间,能够缓冲减振降低电芯的冲击振动的疲劳损伤和内部元件或线路松动的短路发生的概率。
电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品出色的防火性能(A级防火、无烟、不燃),当一组电池短路起火时可隔断其他模组电池与火源的接触,将损失降到更小;其次在冬季,电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品优异的保温性能也可为电池提供适宜的工作温度保障电池性能,再次电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品能够缓冲减振降低电芯的冲击振动的疲劳损伤和内部元件或线路松动的短路发生的概率。
该制品为隔离层,设于电池仓和其他空间仓之间。当汽车部件发生燃烧事故时气凝胶毡可以阻止火势蔓延,为乘车人员争取更多的逃生时间。
本发明的电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品很好的满足了电动汽车锂离子动力蓄电池国家标准规定的缓冲减振、阻燃、高温隔热保温、强度好能折弯等综合性能指标要求。
本发明还包括一种电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品的制造方法,包括以下步骤:
1)准备硅胶防火布和二氧化硅气凝胶毡;
2)模切二氧化硅气凝胶毡,并在其各表面均包覆硅胶防火布;
3)包覆封装处用高硅氧线缝合或粘结。
二氧化硅气凝胶毡的是以有机预氧丝纤维或无机纤维为基材,以纳米二氧化硅气凝胶为填充物,经常压法、微波、冷冻或超临界法干燥后,最后制得强度增强的二氧化硅气凝胶毡。具有导热系数低、密度小、柔韧性好、高抗压、疏水、防火等优越性能,同时兼具优越的隔声减震性能,可取代玻璃纤维制品、石棉保温毡、硅酸盐纤维制品等传统保温材料。
所述无机纤维包括高硅氧玻璃纤维、玻璃纤维、陶瓷纤维、硅酸铝纤维、氧化铝纤维、凯夫拉纤维或碳纤维等增强纤维材料。
电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品的导热系数保持了二氧化硅气凝胶毡制品极低的导热系数,解决了二氧化硅气凝胶毡制品掉粉问题,并且达到了新能源汽车要求的UL94的V0级不燃的性能指标,符合欧盟ROHS要求及美国FDA检测,不燃无毒、稳定性好、耐高温、不析碳,具有优异的耐候性、耐潮湿性、电绝缘性。具体数值如下表所示:
由此可见,采用该制造方法制造的制品在400℃时的导热系数小于等于0.04 W/(m•k),导热系数保持了二氧化硅气凝胶毡制品极低的导热系数。
采用本发明的制造方法制造的制品的应用环境温度范围为-40℃~280℃。保温性能好;耐臭氧、样、光及气候老化,野外使用耐候性优良,寿命可达10年;具有绝缘性能;耐化学腐蚀性能好,抗油、防水(可擦洗);强度高;柔性又有缓冲减振的弹性。
综上所述,用本发明的制造工艺包覆封装的二氧化硅气凝胶毡的保持了二氧化硅气凝胶毡的绝热保温的优异性能。还具有高温隔热导热系数低、良好的化学稳定性、良好的电绝缘性能、热收缩率低、非石棉产品,无污染、抗酸碱腐蚀性能好、优良的抗火烧不燃等性能,充分满足了电动汽车锂离子动力电池要求隔热保温、阻燃、缓冲减振等要求。
硅胶防火布包覆二氧化硅气凝胶毡制品能在280℃高温下长期工作,尤其满足了个别锂离子动力电池芯在发生撞击短路或过冲电发热自燃的条件下,能够起到隔离耐受故障电池芯瞬间释放的高温能量,使得电池芯自燃起火事故不再扩大延展,最大限度的保护广大消费者的财产安全和生命安全,为消除事故和逃生赢得时间。
本发明的制造方法成本低,创新的包覆封装工艺技术适合大批量的产业化制造,将有力支撑我国新能源汽车行业打破国外技术产品垄断和提供性能国际领先的国产化复合材料。目前新能源汽车产业急需电动汽车锂离子动力蓄电池耐高温隔热阻燃缓冲减振用包覆封装的纤维增强的二氧化硅气凝胶毡,来提高电动汽车锂离子动力蓄电池的工作安全可靠性和性能优势的充分发挥,提升我国电动汽车的竞争力和消费者财产和生命安全。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书内容所作的等效结构或等效流程变换,或直接或间接运用在其它相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (8)
1.一种电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品,其特征在于,包括:硅胶防火布层和二氧化硅气凝胶毡层,所述二氧化硅气凝胶毡层的各个表面均有硅胶防火布层包覆连接,所述包覆开口处通过高硅氧线缝合连接或粘结连接。
2.根据权利要求1所述的电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品,其特征在于,该制品设置于各电池芯之间、各电池模组之间或设于各电池芯之间和各电池模组之间。
3.根据权利要求1所述的电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品,其特征在于,该制品为隔离层,设于电池仓和其他空间仓之间。
4.根据权利要求1-3任一所述的电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品的制造方法,其特征在于,包括以下步骤:
1)准备硅胶防火布和二氧化硅气凝胶毡;
2)模切二氧化硅气凝胶毡,并在其各表面均包覆硅胶防火布;
3)包覆封装处用高硅氧线缝合或粘结。
5.根据权利要求4所述的电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品的制造方法,其特征在于,二氧化硅气凝胶毡的是以有机预氧丝纤维或无机纤维为基材,以纳米二氧化硅气凝胶为填充物,经常压法、微波、冷冻或超临界法干燥后,最后制得强度增强的二氧化硅气凝胶毡。
6.根据权利要求5所述的电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品的制造方法,其特征在于,所述无机纤维包括高硅氧玻璃纤维、玻璃纤维、陶瓷纤维、硅酸铝纤维、氧化铝纤维、凯夫拉纤维或碳纤维。
7.根据权利要求4所述的电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品的制造方法,其特征在于,硅胶防火布是以耐高温、防腐、高强的玻璃纤维布,经有机硅橡胶压延或浸渍而成。
8.根据权利要求4所述的电动汽车锂离子动力电池用硅胶防火布包覆二氧化硅气凝胶毡制品的制造方法,其特征在于,采用该制造方法制造的制品的应用环境温度范围为-40℃~280℃。
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104556965A (zh) * | 2014-12-30 | 2015-04-29 | 纳诺科技有限公司 | 一种疏水型二氧化硅气凝胶绝热复合材料 |
CN105240653A (zh) * | 2015-11-11 | 2016-01-13 | 浙江创想节能科技有限公司 | 一种耐超高温可拆卸式保温套 |
CN105909918A (zh) * | 2016-06-08 | 2016-08-31 | 昊瑞森(北京)能源科技有限公司 | 一种柔性保温组件 |
CN106313764A (zh) * | 2016-08-19 | 2017-01-11 | 上海大音希声新型材料有限公司 | 多层复合结构气凝胶基超级隔热复合材料及其制备方法 |
CN107599548A (zh) * | 2017-08-17 | 2018-01-19 | 江苏泛亚微透科技股份有限公司 | 一种二氧化硅气凝胶隔热毡 |
CN107914428A (zh) * | 2017-12-19 | 2018-04-17 | 深圳市德镒盟电子有限公司 | 一种新能源汽车动力电池用隔热防火材料 |
CN208137319U (zh) * | 2018-03-20 | 2018-11-23 | 江西雄宇筑工科技有限公司 | 一种新型装饰隔热保温一体板结构 |
CN109650841A (zh) * | 2018-12-14 | 2019-04-19 | 公安部四川消防研究所 | 一种防火隔音保温气凝胶复合材料及其制备方法 |
CN210136904U (zh) * | 2019-06-03 | 2020-03-10 | 江苏泛亚微透科技股份有限公司 | 电动汽车电池用硅胶防火布包覆二氧化硅气凝胶毡制品 |
-
2019
- 2019-06-03 CN CN201910477662.0A patent/CN112038510A/zh active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104556965A (zh) * | 2014-12-30 | 2015-04-29 | 纳诺科技有限公司 | 一种疏水型二氧化硅气凝胶绝热复合材料 |
CN105240653A (zh) * | 2015-11-11 | 2016-01-13 | 浙江创想节能科技有限公司 | 一种耐超高温可拆卸式保温套 |
CN105909918A (zh) * | 2016-06-08 | 2016-08-31 | 昊瑞森(北京)能源科技有限公司 | 一种柔性保温组件 |
CN106313764A (zh) * | 2016-08-19 | 2017-01-11 | 上海大音希声新型材料有限公司 | 多层复合结构气凝胶基超级隔热复合材料及其制备方法 |
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CN107914428A (zh) * | 2017-12-19 | 2018-04-17 | 深圳市德镒盟电子有限公司 | 一种新能源汽车动力电池用隔热防火材料 |
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CN109650841A (zh) * | 2018-12-14 | 2019-04-19 | 公安部四川消防研究所 | 一种防火隔音保温气凝胶复合材料及其制备方法 |
CN210136904U (zh) * | 2019-06-03 | 2020-03-10 | 江苏泛亚微透科技股份有限公司 | 电动汽车电池用硅胶防火布包覆二氧化硅气凝胶毡制品 |
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