CN106935737A - 一种电解液包装膜 - Google Patents

一种电解液包装膜 Download PDF

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CN106935737A
CN106935737A CN201710173000.5A CN201710173000A CN106935737A CN 106935737 A CN106935737 A CN 106935737A CN 201710173000 A CN201710173000 A CN 201710173000A CN 106935737 A CN106935737 A CN 106935737A
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layer
aluminium foil
nylon
packaging film
foil layer
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李江波
周新怀
周烈峰
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Suzhou Stars New Material Group Co Ltd
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Suzhou Stars New Material Group Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

本发明公开了一种电解液包装膜，包含尼龙层、铝箔层和改性聚丙烯层；所述铝箔层设置在尼龙层与聚丙烯层之间，尼龙层设置在铝箔层的上侧，改性聚丙烯层设置在铝箔层的下侧；本发明的电解液包装膜，在铝箔层的外侧设置尼龙层，内侧设置改性聚丙烯层，并可以在尼龙层与铝箔层之间，以及铝箔层与改性聚丙烯层之间设置去油层和防腐层，通过胶水层进行粘连，使整体具有很好的防潮、隔氧、防锈、防热辐射、抗静电、卫生、遮光等性能；尼龙层可以热封并进行彩印，提高美观性，增加产品的附加价值，较轻的质量降低了运输成本，这样的包装膜结构抗冲击性强，不易破损，不易泄露。

Description

一种电解液包装膜
技术领域
本发明涉及一种电解液包装膜。
背景技术
聚合物锂离子电池的比能量、安全性能方面的优势较大，钢壳电池的放电倍率较高；而铝塑膜包装锂电池的质量、比能量与聚合物锂离子电池相当，高于钢壳电池近1.5倍；而且放电倍率与钢壳电池一致，优于聚合物电池；而针刺试验的结果表明其安全性能接近聚合物电池，优于钢壳电池；同时，相对硬壳（钢壳、硬质塑料壳）电池而言，铝塑膜包装锂电池具有重量轻、体积小、能量密度高、安全性能好、生产工艺简单、成本低、外形尺寸易于改变等优点；因此，如何设置铝塑包装膜的具体结构，来实现并进一步优化其上述特点，成为本行业亟待解决的问题。
发明内容
针对上述存在的技术问题，本发明的目的是：提出了一种电解液包装膜。
本发明的技术解决方案是这样实现的：一种电解液包装膜，包含尼龙层、铝箔层和改性聚丙烯层；所述铝箔层设置在尼龙层与聚丙烯层之间，尼龙层设置在铝箔层的上侧，改性聚丙烯层设置在铝箔层的下侧。
优选的，所述尼龙层与铝箔层之间设置有第一去油层和第一防腐层，第一去油层设置在第一防腐层的上侧。
优选的，所述尼龙层与第一去油层之间通过第一胶水层粘连。
优选的，所述改性聚丙烯层与铝箔层之间设置有第二去油层和第二防腐层，第二去油层设置在第二防腐层的下侧。
优选的，所述改性聚丙烯层与第二去油层之间通过第二胶水层粘连。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：
本发明的电解液包装膜，在铝箔层的外侧设置尼龙层，内侧设置改性聚丙烯层，并可以在尼龙层与铝箔层之间，以及铝箔层与改性聚丙烯层之间设置去油层和防腐层，通过胶水层进行粘连，使整体具有很好的防潮、隔氧、防锈、防热辐射、抗静电、卫生、遮光等性能；尼龙层可以热封并进行彩印，提高美观性，增加产品的附加价值，较轻的质量降低了运输成本，这样的包装膜结构抗冲击性强，不易破损，不易泄露。
附图说明
下面结合附图对本发明技术方案作进一步说明：
附图1为本发明的一种电解液包装膜的结构示意图。
具体实施方式
下面结合附图来说明本发明。
如图1所示，本发明所述的一种电解液包装膜，包含由外到内依次设置的尼龙层1、第一胶水层2、第一去油层3、第一防腐层4、铝箔层5、第二防腐层6、第二去油层7、第二胶水层8和改性聚丙烯层9；所述改性聚丙烯层9在内侧包裹电解液，外侧的尼龙层1在端部进行热封，形成完整的电解液包装膜。
其中，尼龙层1为尼龙薄膜，其具有杰出的抗拉伸强度和抗穿刺强度；优异的对气体和气味的高阻隔性；防油脂碳氧化物的防化学性；较宽的适用温度范围（-60℃至150℃）；良好的透明性和光泽性。
第一胶水层2和第二胶水层8为胶粘剂，其耐水、耐介质性好；粘接强度高，初粘力大；贮存稳定性良好；耐冻融、耐较高温度；干燥速度较快，低环境温度下成膜性、阻隔性良好；施工工艺佳。
第一去油层3和第二去油层7是通过高温把铝箔层5上下表面残留油污经过高温去除；使洁净后的铝箔层5与胶粘剂更容易贴合、复合牢固度更强。
铝箔层5上下表面的第一防腐层4和第二防腐层6使电解液与铝箔层5之间形成有效阻隔，避免铝箔层5直接与电解液接触，从而保护铝箔层5不被电解液腐蚀。
铝箔层5具有优良的冲压性能；杰出的高阻隔性；抑制电池极化，减少热效应，提高倍率性能；降低电池内阻，并明显降低了循环过程的动态内阻增幅；提高一致性，增加电池的循环寿命；提高活性物质与集流体的粘附力，降低极片制造成本；保护集流体不被电解液腐蚀；改善磷酸铁锂、钛酸锂、聚合物材料的加工性能。
改性聚丙烯层9具有优越的阻隔性；优良的抗冲击强度和耐磨性；耐高低温和防腐蚀、耐酸碱性能。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。

Claims (5)

1.一种电解液包装膜，其特征在于：包含尼龙层（1）、铝箔层（5）和改性聚丙烯层（9）；所述铝箔层（5）设置在尼龙层（1）与聚丙烯层（9）之间，尼龙层（1）设置在铝箔层（5）的上侧，改性聚丙烯层（9）设置在铝箔层（5）的下侧。
2.根据权利要求1所述的电解液包装膜，其特征在于：所述尼龙层（1）与铝箔层（5）之间设置有第一去油层（3）和第一防腐层（4），第一去油层（3）设置在第一防腐层（4）的上侧。
3.根据权利要求2所述的电解液包装膜，其特征在于：所述尼龙层（1）与第一去油层（3）之间通过第一胶水层（2）粘连。
4.根据以上任意一项权利要求所述的电解液包装膜，其特征在于：所述改性聚丙烯层（9）与铝箔层（5）之间设置有第二去油层（7）和第二防腐层（6），第二去油层（7）设置在第二防腐层（6）的下侧。
5.根据权利要求4所述的电解液包装膜，其特征在于：所述改性聚丙烯层（9）与第二去油层（7）之间通过第二胶水层（8）粘连。
CN201710173000.5A 2017-03-22 2017-03-22 一种电解液包装膜 Pending CN106935737A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109037499A (zh) * 2018-07-27 2018-12-18 杭州中齐新材料科技有限公司 一种新能源汽车锂电池用软包装材料

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104966800A (zh) * 2015-07-13 2015-10-07 苏州锂盾储能材料技术有限公司 一种锂电池复合包装功能化铝塑膜
CN205028959U (zh) * 2015-10-10 2016-02-10 东莞市卓越新材料科技有限公司 薄型耐折铝塑膜

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104966800A (zh) * 2015-07-13 2015-10-07 苏州锂盾储能材料技术有限公司 一种锂电池复合包装功能化铝塑膜
CN205028959U (zh) * 2015-10-10 2016-02-10 东莞市卓越新材料科技有限公司 薄型耐折铝塑膜

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109037499A (zh) * 2018-07-27 2018-12-18 杭州中齐新材料科技有限公司 一种新能源汽车锂电池用软包装材料

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Application publication date: 20170707