CN105826505A - 一种可穿戴柔性电池的隔膜制造工艺 - Google Patents
一种可穿戴柔性电池的隔膜制造工艺 Download PDFInfo
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Abstract
本发明一种可穿戴柔性电池的隔膜制造工艺，涉及电池制备领域，具体涉及柔性电池的生产方法，其特征在于:让其配制的聚合物纳米纤维6与湿法的PE隔膜4所结合，形成良好的新型隔膜，原有湿法PE隔膜4，经过电纺技术附着在PE隔膜基底上的聚合物纳米纤维6，本发明改变原有隔膜的部分特性，达到柔性隔膜的厚度均匀性、好的透过性、力学性能、化学稳定性能和安全保护性能，最终达到柔性隔膜所具备的优良的弯折、拉伸性能能。
Description
技术领域
本发明涉及电池制备领域，具体涉及柔性电池的生产方法。
背景技术
目前，国内可生产单层、用于小型电子产品上的柔性隔膜，但合格率低、质量均一性差、稳定性各个方面都不是太好，更无法实现量产，所以，在柔性电池电性能和安全性能上还是有待提高的。
干法工艺的隔膜在国内属于工艺简单，无污染，同时也是锂离子电池隔膜的常用制备方法，但是该工艺在孔径及孔隙率方面较难控制，拉伸比较小，同时低温拉伸容易出现隔膜穿孔现象。
湿法工艺的隔膜横向拉伸强度是提高了很多，也不会容易造成穿孔，也能够使电池做的更薄，但是在孔径一致性以及安全方面还是不那么理想。
因此，在柔性隔膜的市场里，哪怕是对现已拥有的隔膜进行改性还是利用新材料开发的新材料柔性隔膜，都基本存在以上问题。
发明内容
本发明公开了一种可穿戴柔性电池的隔膜制造工艺，改变原有隔膜的部分特性，达到柔性隔膜的厚度均匀性、好的透过性、力学性能、化学稳定性能和安全保护性能，最终达到柔性隔膜所具备的优良的弯折、拉伸性能。
本发明包括有以下生产步骤:
步骤①将湿法PE隔膜4固定在静电纺丝设备料轴2；
步骤②通过导辊将PE隔膜4进行拉伸铺平，通过静电纺丝设备机箱内部；
步骤③将加热搅拌按照配方配比配好的聚合物液体5加入静电纺丝设备料槽；
步骤④设定工作参数，依照设定电压、后在收卷轴1的带动下，湿法的PE隔膜安装轴2随之转动，经其余各传动轴3将湿法PE隔膜拉伸准备电纺；
步骤⑤由于内部PE隔膜4在，当加热的聚合物溶液5通过静电场分布力的作用，静电场让其配制的形成无数致密连续的纳米纤维6向上附着在PE隔膜之上；
步骤⑥经过电纺之后的改性隔膜由收集端收集成卷。
所述的聚合物液体由以下材料配比而成:硫胺18～23%、聚酰亚胺2～16%、氧化铜8～15%、汞5～7%、聚乙烯醇18～32%、钛酸丁酯13～32%、聚丙烯氰4～9%、四氯化碳2～13%。
通过静电场分布的原理，让其配制的聚合物纳米纤维6与湿法的PE隔膜4所结合，形成良好的新型隔膜，原有湿法PE隔膜4，经过电纺技术附着在PE隔膜基底上的聚合物纳米纤维6，改变原有隔膜的部分特性，使之变得更加有利于柔性电池性能的提升，最终达到柔性隔膜所具备的优良的弯折、拉伸性能。
附图说明
图1是本发明的实施示意图。
具体实施方式
如图1所示，本发明包括有以下生产步骤:
步骤①将湿法PE隔膜4固定在静电纺丝设备料轴2；
步骤②通过导辊将PE隔膜4进行拉伸铺平，通过静电纺丝设备机箱内部；
步骤③将加热搅拌按照配方配比配好的聚合物液体5加入静电纺丝设备料槽；
步骤④设定工作参数，依照设定电压、后在收卷轴1的带动下，湿法的PE隔膜安装轴2随之转动，经其余各传动轴3将湿法PE隔膜拉伸准备电纺；
步骤⑤由于内部PE隔膜4在，当加热的聚合物溶液5通过静电场分布力的作用，静电场让其配制的形成无数致密连续的纳米纤维6向上附着在PE隔膜之上；
步骤⑥经过电纺之后的改性隔膜由收集端收集成卷。
所述的聚合物液体由以下材料配比而成:硫胺19%、聚酰亚胺12%、氧化铜11%、汞6%、聚乙烯醇20%、钛酸丁酯17%、聚丙烯氰6%、四氯化碳9%。
通过静电场分布的原理，让其配制的聚合物纳米纤维6与湿法的PE隔膜4所结合，形成良好的新型隔膜，原有湿法PE隔膜4，经过电纺技术附着在PE隔膜基底上的聚合物纳米纤维6，改变原有隔膜的部分特性，使之变得更加有利于柔性电池性能的提升，最终达到柔性隔膜所具备的优良的弯折、拉伸性能。
最后应说明的是：显然，上述实施例仅仅是为清楚地说明本发明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引申出的显而易见的变化或变动仍处于本发明的保护范围之中。
Claims (2)
1.一种可穿戴柔性电池的隔膜制造工艺，其特征在于，包括有以下生产步骤:
步骤①将湿法PE隔膜（4）固定在静电纺丝设备料轴（2）；
步骤②通过导辊将PE隔膜（4）进行拉伸铺平，通过静电纺丝设备机箱内部；
步骤③将加热搅拌按照配方配比配好的聚合物液体（5）加入静电纺丝设备料槽；
步骤④设定工作参数，依照设定电压、后在收卷轴（1）的带动下，湿法的PE隔膜安装轴（2）随之转动，经其余各传动轴（3）将湿法PE隔膜拉伸准备电纺；
步骤⑤由于内部PE隔膜（4）在，当加热的聚合物溶液(5)通过静电场分布力的作用，静电场让其配制的形成无数致密连续的纳米纤维（6）向上附着在PE隔膜之上；
步骤⑥经过电纺之后的改性隔膜由收集端收集成卷。
2.所述的聚合物液体由以下材料配比而成:硫胺18～23%、聚酰亚胺2～16%、氧化铜8～15%、汞5～7%、聚乙烯醇18～32%、钛酸丁酯13～32%、聚丙烯氰4～9%、四氯化碳2～13%。
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| CN106410097A (zh) * | 2016-08-25 | 2017-02-15 | 佛山市欣源电子股份有限公司 | 一种锂电池安全隔膜 |
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