CN113996485B - 一种锂离子电池用耐溶剂性保护膜及其涂布设备、涂布方法 - Google Patents
一种锂离子电池用耐溶剂性保护膜及其涂布设备、涂布方法 Download PDFInfo
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Abstract
本发明提供一种应用于锂离子电池技术领域的锂离子电池用耐溶剂性保护膜涂布设备,所述的锂离子电池用耐溶剂性保护膜涂布设备的涂布光辊(2)下方设置胶液池(3),涂布光辊(3)的下端线(6)的水平高度位于胶液高位传感器(4)和胶液低位传感器(5)垂直距离之间的范围,胶液池(3)靠近底部设置的推板(7)下端和胶液池(3)底部之间设置气缸(8),胶液池(3)上端设置刮除定型轮(9),刮除定型轮(9)下方设置清洗槽(10),本发明的锂离子电池用耐溶剂性保护膜涂布设备,精准地对基材膜层经过胶液池粘附胶液后的厚度进行控制,避免控制胶液厚度的间隙越来越小,保障胶层厚度始终在设定范围之间,提高保护膜的整体质量。
Description
技术领域
本发明属于锂离子电池技术领域,更具体地说,是涉及一种锂离子电池用耐溶剂性保护膜涂布设备,本发明还涉及一种锂离子电池用耐溶剂性保护膜涂布方法。
背景技术
在电池技术领域,需要使用到耐溶剂性保护膜。而现有技术中的一种耐溶剂性保护膜,包括基材膜层和胶层。进行涂布制备时,是在基材层上涂胶,然后进入烘烤箱进行加热。而在涂胶时,是通过基材膜层经过胶液池粘附胶液,而后刮板刮除多余胶液、烘烤,形成胶层。然而,通过刮板刮除,无法精准控制胶液厚度,而刮板多次刮除胶液后,表面粘附胶液,使得和涂布辊之间间隙变小,从而使得控制的间隙越来越小,使得胶层的厚度也来越小。而保护膜本身厚度就很小,这样的误差,已经无法有效保障胶层的厚度在范围之间,不良率高。
发明内容
本发明所要解决的技术问题是:针对现有技术的不足,提供一种结构简单,通过双道保障,可靠精准地对基材膜层经过胶液池粘附胶液后的厚度进行控制,避免控制胶液厚度的间隙越来越小,使得胶层厚度误差越来越大的问题出现,保障胶层的厚度始终在设定范围之间,提高保护膜的整体质量的锂离子电池用耐溶剂性保护膜涂布设备。
要解决以上所述的技术问题,本发明采取的技术方案为:
本发明为一种锂离子电池用耐溶剂性保护膜涂布设备,所述的锂离子电池用耐溶剂性保护膜涂布设备包括基材膜放送辊,基材膜放送辊后部设置涂布光辊,涂布光辊下方设置胶液池,胶液池内盛放胶液,胶液池侧壁靠近上方设置胶液高位传感器和胶液低位传感器,涂布光辊的下端线的水平高度设置为位于胶液高位传感器和胶液低位传感器垂直距离之间的范围,胶液池靠近底部设置推板,推板下端和胶液池底部之间设置气缸,气缸、胶液高位传感器和胶液低位传感器分别连接控制部件,胶液池靠近涂布光辊一侧侧壁上端设置刮除定型轮,刮除定型轮通过电机驱动,刮除定型轮下方设置清洗槽。
基材膜放送辊放送的基材膜层设置为能够从涂布光辊下方的下端线绕过涂布光辊的结构。
所述的刮除定型轮和涂布光辊之间形成控制间隙,控制间隙的尺寸等于基材膜层上的胶层的厚度。
所述的刮除定型轮设置为接触过经过胶液池的基材膜层后能够经过清洗槽清洗辊面的结构。
所述的清洗槽固定在胶液池上端,清洗槽底部设置放水阀,刮除定型轮经过清洗槽时,刮除定型轮设置为能够在清洗槽旋转一周以上的结构。
本发明还涉及一种步骤简单,通过双道保障,可靠精准地对基材膜层经过胶液池粘附胶液后的厚度进行控制,避免控制胶液厚度的间隙越来越小,使得胶层厚度误差越来越大的问题出现,保障胶层的厚度始终在设定范围之间,提高保护膜的整体质量的锂离子电池用耐溶剂性保护膜涂布方法。
所述的锂离子电池用耐溶剂性保护膜涂布方法的涂布步骤为:
S1.基材膜放送辊放送基材膜层,从涂布光辊下方的下端线绕过涂布光辊;
S2.绕过涂布光辊的基材膜层下表面通过胶液池时粘附胶液,粘附胶液的基材膜层再经过刮除定型轮和涂布光辊之间的控制间隙;
S3.接触过粘附胶液的基材膜层的刮除定型轮经过清洗槽清洗辊面;
S4.清洗辊面的刮除定型轮往复旋转,持续控制涂布光辊定型基材膜层表面的胶层的厚度。
所述的刮除定型轮通过控制部件控制启停及转速调节,刮除定型轮启动后通过控制部件控制往复旋转。
所述的胶液高位传感器和胶液低位传感器在控制部件控制下,监控胶液的液面,控制部件控制气缸的启闭,控制液面始终处于胶液高位传感器和胶液低位传感器限定的高度之间,使得涂布光辊的下端线的水平高度位于胶液高位传感器和胶液低位传感器垂直距离之间,粘附胶液。
本发明还涉及一种锂离子电池用耐溶剂性保护膜,其特征在于:所述的锂离子电池用耐溶剂性保护膜包括基材膜层、胶层、耐刮层。
胶层一侧粘连基材膜层,胶层另一侧粘连耐刮层。
采用本发明的技术方案,能得到以下的有益效果:
本发明所述的锂离子电池用耐溶剂性保护膜涂布设备,进行胶液在基材膜层上涂布时,通过设置涂布光辊和胶液池的相对位置,涂布光辊的下端线的水平高度位于胶液高位传感器和胶液低位传感器垂直距离之间的范围,同时胶液高位传感器和胶液低位传感器始终控制胶液液面,这样,确保绕过涂布光辊的基材膜层经过胶液池时,能够粘附可靠厚度的胶液,又不会粘附胶液过多,也不会浸泡在胶液中,使得基材膜层另一面粘附过多胶液。同时,通过靠近涂布光辊的刮除定型轮,使得粘附胶液的基材膜层通过,对基材膜层上粘附的过多的胶液进行刮除,控制胶液厚度,而刮除定型轮刮除过胶液的部位,会旋转经过清洗槽进行清洗,清洗粘附的胶液,这样,下一圈再刮除时,表面没有粘附胶液,不会影响控制间隙,确保保障胶层的厚度始终在设定范围之间,不会出现控制间隙变小的问题,提高保护膜质量。
附图说明
下面对本说明书各附图所表达的内容及图中的标记作出简要的说明:
图1为本发明所述的锂离子电池用耐溶剂性保护膜涂布设备的结构示意图;
附图中标记分别为:1、基材膜放送辊;2、涂布光辊;3、胶液池;4、胶液高位传感器;5、胶液低位传感器;6、下端线;7、推板;8、气缸;9、刮除定型轮;10、清洗槽;11、基材膜层。
具体实施方式
下面对照附图,通过对实施例的描述,对本发明的具体实施方式如所涉及的各构件的形状、构造、各部分之间的相互位置及连接关系、各部分的作用及工作原理等作进一步的详细说明:
如附图1所示,本发明为一种锂离子电池用耐溶剂性保护膜涂布设备,所述的锂离子电池用耐溶剂性保护膜涂布设备包括基材膜放送辊1,基材膜放送辊1后部设置涂布光辊2,涂布光辊2下方设置胶液池3,胶液池3内盛放胶液,胶液池3侧壁靠近上方设置胶液高位传感器4和胶液低位传感器5,涂布光辊3的下端线6的水平高度设置为位于胶液高位传感器4和胶液低位传感器5垂直距离之间的范围,胶液池3靠近底部设置推板7,推板7下端和胶液池3底部之间设置气缸8,气缸8、胶液高位传感器4和胶液低位传感器5分别连接控制部件,胶液池3靠近涂布光辊2一侧侧壁上端设置刮除定型轮9,刮除定型轮9通过电机驱动,刮除定型轮9下方设置清洗槽10。上述结构,针对现有技术中的不足,提出改进方案。进行胶液在基材膜层上涂布时,通过设置涂布光辊和胶液池的相对位置,涂布光辊3的下端线6的水平高度位于胶液高位传感器4和胶液低位传感器5垂直距离之间的范围,同时胶液高位传感器4和胶液低位传感器5始终控制胶液液面,这样,确保绕过涂布光辊的基材膜层经过胶液池时,能够粘附可靠厚度的胶液,又不会粘附胶液过多,也不会浸泡在胶液中,使得基材膜层另一面粘附过多胶液。同时,通过靠近涂布光辊的刮除定型轮9,使得粘附胶液的基材膜层通过,对基材膜层上粘附的过多的胶液进行刮除,控制胶液厚度,而刮除定型轮刮除过胶液的部位,会旋转经过清洗槽进行清洗,清洗粘附的胶液,这样,下一圈再刮除时,表面没有粘附胶液,不会影响控制间隙,确保保障胶层的厚度始终在设定范围之间,不会出现控制间隙变小的问题。本发明所述的锂离子电池用耐溶剂性保护膜涂布设备,结构简单,通过双道保障,可靠精准地对基材膜层经过胶液池粘附胶液后的厚度进行控制,避免控制胶液厚度的间隙越来越小,使得胶层厚度误差越来越大的问题出现,保障胶层的厚度始终在设定范围之间,提高保护膜的整体质量。
基材膜放送辊1放送的基材膜层11设置为能够从涂布光辊2下方的下端线6绕过涂布光辊2的结构。所述的刮除定型轮9和涂布光辊2之间形成控制间隙,控制间隙的尺寸等于基材膜层11上的胶层的厚度。因为保护膜本身是厚度相当薄的产品,因此,基材膜层和胶层的厚度控制,都是在相当微小的范围控制调节的。因此,胶层的厚度的误差范围,也是相当小的数值,而现有技术中无法满足控制要求。
所述的刮除定型轮9设置为接触过经过胶液池3的基材膜层11后能够经过清洗槽10清洗辊面的结构。所述的清洗槽10固定在胶液池3上端,清洗槽10底部设置放水阀,刮除定型轮9经过清洗槽10时,刮除定型轮9设置为能够在清洗槽10旋转一周以上的结构。上述结构,刮除定型轮刮除过胶液的部位,会旋转经过清洗槽进行清洗,清洗粘附的胶液,这样,刮除定型轮9下一圈再刮除时,刮除定型轮9表面没有粘附胶液,不会影响和涂布光辊之间的控制间隙变小。
本发明还涉及一种锂离子电池用耐溶剂性保护膜涂布方法,其特征在于:所述的锂离子电池用耐溶剂性保护膜涂布方法的涂布步骤为:
S1.基材膜放送辊1放送基材膜层11,从涂布光辊2下方的下端线6绕过涂布光辊2;S2.绕过涂布光辊2的基材膜层11下表面通过胶液池3时粘附胶液,粘附胶液的基材膜层11再经过刮除定型轮9和涂布光辊2之间的控制间隙;S3. 接触过粘附胶液的基材膜层11的刮除定型轮9经过清洗槽10清洗辊面;S4.清洗辊面的刮除定型轮9往复旋转,持续控制涂布光辊2定型基材膜层11表面的胶层的厚度。所述的刮除定型轮9通过控制部件控制启停及转速调节,刮除定型轮9启动后通过控制部件控制往复旋转。所述的胶液高位传感器4和胶液低位传感器5在控制部件控制下,监控胶液的液面,控制部件控制气缸的启闭,控制液面始终处于胶液高位传感器4和胶液低位传感器5限定的高度之间,使得涂布光辊3的下端线6的水平高度位于胶液高位传感器4和胶液低位传感器5垂直距离之间,粘附胶液。本发明的方法,进行胶液在基材膜层上涂布时,通过设置涂布光辊和胶液池的相对位置,涂布光辊3的下端线6的水平高度位于胶液高位传感器4和胶液低位传感器5垂直距离之间的范围,同时胶液高位传感器4和胶液低位传感器5始终控制胶液液面,这样,确保绕过涂布光辊的基材膜层经过胶液池时,能够粘附可靠厚度的胶液,又不会粘附胶液过多,也不会浸泡在胶液中,使得基材膜层另一面粘附过多胶液。同时,通过靠近涂布光辊的刮除定型轮9,使得粘附胶液的基材膜层通过,对基材膜层上粘附的过多的胶液进行刮除,控制胶液厚度,而刮除定型轮刮除过胶液的部位,会旋转经过清洗槽进行清洗,清洗粘附的胶液,这样,下一圈再刮除时,表面没有粘附胶液,不会影响控制间隙,确保保障胶层的厚度始终在设定范围之间,不会出现控制间隙变小的问题。
本发明还涉及一种锂离子电池用耐溶剂性保护膜,其特征在于:所述的锂离子电池用耐溶剂性保护膜包括基材膜层11、胶层、耐刮层。所述的胶层一侧粘连基材膜层11,胶层另一侧粘连耐刮层。
本发明所述的锂离子电池用耐溶剂性保护膜涂布设备,进行胶液在基材膜层上涂布时,通过设置涂布光辊和胶液池的相对位置,涂布光辊的下端线的水平高度位于胶液高位传感器和胶液低位传感器垂直距离之间的范围,同时胶液高位传感器和胶液低位传感器始终控制胶液液面,这样,确保绕过涂布光辊的基材膜层经过胶液池时,能够粘附可靠厚度的胶液,又不会粘附胶液过多,也不会浸泡在胶液中,使得基材膜层另一面粘附过多胶液。同时,通过靠近涂布光辊的刮除定型轮,使得粘附胶液的基材膜层通过,对基材膜层上粘附的过多的胶液进行刮除,控制胶液厚度,而刮除定型轮刮除过胶液的部位,会旋转经过清洗槽进行清洗,清洗粘附的胶液,这样,下一圈再刮除时,表面没有粘附胶液,不会影响控制间隙,确保保障胶层的厚度始终在设定范围之间,不会出现控制间隙变小的问题,提高保护膜质量。
上面结合附图对本发明进行了示例性的描述,显然本发明具体的实现并不受上述方式的限制,只要采用了本发明的方法构思和技术方案进行的各种改进,或未经改进将本发明的构思和技术方案直接应用于其他场合的,均在本发明的保护范围内。
Claims (9)
1.一种锂离子电池用耐溶剂性保护膜涂布方法,其特征在于:锂离子电池用耐溶剂性保护膜涂布方法使用的锂离子电池用耐溶剂性保护膜涂布设备包括基材膜放送辊(1),基材膜放送辊(1)后部设置涂布光辊(2),涂布光辊(2)下方设置胶液池(3),胶液池(3)内盛放胶液,胶液池(3)侧壁靠近上方设置胶液高位传感器(4)和胶液低位传感器(5),涂布光辊(2)的下端线(6)的水平高度设置为位于胶液高位传感器(4)和胶液低位传感器(5)垂直距离之间的范围,胶液池(3)靠近底部设置推板(7),推板(7)下端和胶液池(3)底部之间设置气缸(8),气缸(8)、胶液高位传感器(4)和胶液低位传感器(5)分别连接控制部件,胶液池(3)靠近涂布光辊(2)一侧侧壁上端设置刮除定型轮(9),刮除定型轮(9)通过电机驱动,刮除定型轮(9)下方设置清洗槽(10);
所述的锂离子电池用耐溶剂性保护膜涂布方法的涂布步骤为:
S1.基材膜放送辊(1)放送基材膜层(11),从涂布光辊(2)下方的下端线(6)绕过涂布光辊(2);
S2.绕过涂布光辊(2)的基材膜层(11)下表面通过胶液池(3)时粘附胶液,粘附胶液的基材膜层(11)再经过刮除定型轮(9)和涂布光辊(2)之间的控制间隙;
S3.接触过粘附胶液的基材膜层(11)的刮除定型轮(9)经过清洗槽(10)清洗辊面;
S4.清洗辊面的刮除定型轮(9)往复旋转,持续控制涂布光辊(2)定型基材膜层(11)表面的胶层的厚度。
2.根据权利要求1所述的锂离子电池用耐溶剂性保护膜涂布方法,其特征在于:基材膜放送辊(1)放送的基材膜层(11)设置为能够从涂布光辊(2)下方的下端线(6)绕过涂布光辊(2)的结构。
3.根据权利要求2所述的锂离子电池用耐溶剂性保护膜涂布方法,其特征在于:所述的刮除定型轮(9)和涂布光辊(2)之间形成控制间隙,控制间隙的尺寸等于基材膜层(11)上的胶层的厚度。
4.根据权利要求3所述的锂离子电池用耐溶剂性保护膜涂布方法,其特征在于:所述的刮除定型轮(9)设置为接触过经过胶液池(3)的基材膜层(11)后能够经过清洗槽(10)清洗辊面的结构。
5.根据权利要求4所述的锂离子电池用耐溶剂性保护膜涂布方法,其特征在于:所述的清洗槽(10)固定在胶液池(3)上端,清洗槽(10)底部设置放水阀,刮除定型轮(9)经过清洗槽(10)时,刮除定型轮(9)设置为能够在清洗槽(10)旋转一周以上的结构。
6.根据权利要求1或2所述的锂离子电池用耐溶剂性保护膜涂布方法,其特征在于:所述的刮除定型轮(9)通过控制部件控制启停及转速调节,刮除定型轮(9)启动后通过控制部件控制往复旋转。
7.根据权利要求6所述的锂离子电池用耐溶剂性保护膜涂布方法,其特征在于:所述的胶液高位传感器(4)和胶液低位传感器(5)在控制部件控制下,监控胶液的液面,控制部件控制气缸的启闭,控制液面始终处于胶液高位传感器(4)和胶液低位传感器(5)限定的高度之间,使得涂布光辊(2)的下端线(6)的水平高度位于胶液高位传感器(4)和胶液低位传感器(5)垂直距离之间,粘附胶液。
8.根据权利要求1所述的锂离子电池用耐溶剂性保护膜涂布方法制备的锂离子电池用耐溶剂性保护膜,其特征在于:所述的锂离子电池用耐溶剂性保护膜包括基材膜层(11)、胶层、耐刮层。
9.根据权利要求8所述的锂离子电池用耐溶剂性保护膜,其特征在于:胶层一侧粘连基材膜层(11),胶层另一侧粘连耐刮层。
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