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公开(公告)号：US20100304220A1
公开(公告)日：2010-12-02
申请号：US12720272
申请日：2010-03-09
Applicant: Xin ZHANG , Haitao Xu , Yanchuan Guo , Qiangli Gao , Rongfu Li , Ying Cui , Yuanfen Hu , Keli Chen
Inventor： Xin ZHANG , Haitao Xu , Yanchuan Guo , Qiangli Gao , Rongfu Li , Ying Cui , Yuanfen Hu , Keli Chen
CPC classification number: H01M10/0565 , H01M2/1673 , H01M2/168 , H01M4/661 , H01M10/0436 , H01M10/0525 , H01M10/0585 , H01M2300/0085 , Y10T29/49115
Abstract: The invention relates to a composite gel polymer Li-ion battery and its producing method. The Li-ion battery cell includes a three-layer composite layer of positive electrode current collector, positive electrode active material and gel polymer electrolyte obtained by a two-layer one-step coating process; a two-layer composite layer of negative electrode current collector and negative electrode active material obtained by a single-layer coating process or a negative electrode two-layer composite layer coated with a little polyurethane adhesive(s) on the surface. The gel polymer Li-ion battery cell is obtained by laminating the resultant two composite layers. Its producing method includes: A) coating directly the composite positive electrode current collector film which has a bottom layer of polyester and a surface layer of metal (aluminum, copper, silver or gold) foil with a positive electrode active material and a gel polymer electrolyte by a two-layer one-step coating process; B) coating the composite negative electrode current collector film which has a bottom layer of polyester and a surface layer of metal (aluminum, copper, silver or gold) foil with a Li battery negative electrode active material; C) laminating A and B layers, heating and curing, leading out electrode lugs, and thereby obtaining gel polymer Li-ion battery cells; D) vacuum-packing the battery cells, and thereby obtaining a gel polymer Li-ion battery. The gel polymer Li-ion battery cell has a small thickness and a compact structure, and is laminated closely and easy for preparation and industrial automatic production. And a plurality of groups of cells can be laminated and cut to a desirable geometrical shape, so as to obtain a Li battery pack in a desired shape. The Li battery prepared by the method has a uniform structure, a low internal resistance, a high uniformity, a good unity, and a high safety.
Abstract translation: 本发明涉及一种复合凝胶聚合物锂离子电池及其制备方法。 锂离子电池单元包括通过两层一步涂布工艺获得的正极集电体，正极活性材料和凝胶聚合物电解质的三层复合层; 通过单层涂布方法得到的负极集电体和负极活性物质的双层复合层，或者在表面涂布少量聚氨酯粘合剂的负极双层复合层。 凝胶聚合物锂离子电池通过层压所得到的两个复合层而获得。 其制造方法包括：A）直接涂覆具有聚酯底层和金属（铝，铜，银或金）箔的表面层的正极活性物质和凝胶聚合物电解质的复合正极集电体膜 通过两层一步涂层工艺; B）用Li电池负极活性物质涂覆具有聚酯底层和金属（铝，铜，银或金）表面层的复合负极集电体膜; C）层压A层和B层，加热固化，引出电极片，从而获得凝胶聚合物锂离子电池; D）对电池单元进行真空包装，从而获得凝胶聚合物锂离子电池。 凝胶聚合物锂离子电池电池厚度小，结构紧凑，贴合紧密，易于制备和工业自动化生产。 并且可以将多组电池层叠并切割成所需的几何形状，以便获得所需形状的Li电池组。 通过该方法制备的Li电池具有均匀的结构，低内阻，高均匀性，良好的一致性和高安全性。
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公开(公告)号：US08382861B2
公开(公告)日：2013-02-26
申请号：US12720272
申请日：2010-03-09
Applicant: Xin Zhang , Haitao Xu , Yanchuan Guo , Qiangli Gao , Rongfu Li , Ying Cui , Yuanfen Hu , Keli Chen
Inventor： Xin Zhang , Haitao Xu , Yanchuan Guo , Qiangli Gao , Rongfu Li , Ying Cui , Yuanfen Hu , Keli Chen
CPC classification number: H01M10/0565 , H01M2/1673 , H01M2/168 , H01M4/661 , H01M10/0436 , H01M10/0525 , H01M10/0585 , H01M2300/0085 , Y10T29/49115
Abstract: The invention relates to a composite gel polymer Li-ion battery and its producing method. The Li-ion battery cell includes a three-layer composite layer of positive electrode current collector, positive electrode active material and gel polymer electrolyte obtained by a two-layer one-step coating process; a two-layer composite layer of negative electrode current collector and negative electrode active material obtained by a single-layer coating process or a negative electrode two-layer composite layer coated with a little polyurethane adhesive(s) on the surface. The gel polymer Li-ion battery cell is obtained by laminating the resultant two composite layers. The gel polymer Li-ion battery cell has a small thickness and a compact structure, and is laminated closely and easy for preparation and industrial automatic production. The Li battery prepared by the method has a uniform structure, a low internal resistance, a high uniformity, a good unity, and a high safety.
Abstract translation: 本发明涉及一种复合凝胶聚合物锂离子电池及其制备方法。 锂离子电池单元包括通过两层一步涂布工艺获得的正极集电体，正极活性材料和凝胶聚合物电解质的三层复合层; 通过单层涂布方法得到的负极集电体和负极活性物质的双层复合层，或者在表面涂布少量聚氨酯粘合剂的负极双层复合层。 凝胶聚合物锂离子电池通过层压所得到的两个复合层而获得。 凝胶聚合物锂离子电池电池厚度小，结构紧凑，贴合紧密，易于制备和工业自动化生产。 通过该方法制备的Li电池具有均匀的结构，低内阻，高均匀性，良好的一致性和高安全性。
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3.发明申请公开(公告)号：US20100304221A1
公开(公告)日：2010-12-02
申请号：US12720298
申请日：2010-03-09
Applicant: Xin ZHANG , Yanchuan Guo , Haitao Xu , Qiangli Gao , Rongfu Li , Ying Cui , Yuanfen Hu , Keli Chen
Inventor： Xin ZHANG , Yanchuan Guo , Haitao Xu , Qiangli Gao , Rongfu Li , Ying Cui , Yuanfen Hu , Keli Chen
CPC classification number: H01M2/1673 , H01M2/168 , H01M4/0404 , H01M4/364 , H01M10/0436 , H01M10/0525 , H01M10/0565 , H01M10/0585 , H01M2300/0085
Abstract: The present invention relates to a gel polymer Li-ion battery electrode slice and a method for preparing the same. The electrode slice comprises a two-layer composite structure of electrode active material/gel electrolyte or a three-layer composite structure of electrode active material/gel electrolyte/electrode active material. The method includes preparation and filtration of gel polymer Li-ion battery electrode slurry and gel polymer electrolyte slurry and a multi-layer one-step coating process, and includes the following steps: a) grinding an electrode active material, and adding an adhesive, a surfactant, a dispersant thereto to obtain a raw slurry of the electrode active material; b) filtering the raw slurry of the electrode active material to obtain a uniform, fine precoating slurry; c) dispersing a monomer, a curing agent of the gel electrolyte and a polymer Li battery electrolyte into a solvent, and filtering the resultant dispersion to obtain a precoating gel electrolyte slurry; and d) coating directly the precoating slurries obtained in steps b) and c) on a composite film of current collector and polyester by a multi-layer one-step coating process to obtain a battery electrode slice of a two-layer composite structure of electrode active material/gel electrolyte or of a three-layer composite structure of electrode active material/gel electrolyte/electrode active material.
Abstract translation: 本发明涉及一种凝胶聚合物锂离子电池电极片及其制备方法。 电极片包括电极活性材料/凝胶电解质的双层复合结构或电极活性材料/凝胶电解质/电极活性材料的三层复合结构。 该方法包括制备和过滤凝胶聚合物锂离子电池电极浆料和凝胶聚合物电解质浆料和多层一步涂层工艺，包括以下步骤：a）研磨电极活性材料，加入粘合剂， 表面活性剂，分散剂，得到电极活性物质的原料浆料; b）过滤电极活性材料的原料浆料，得到均匀，细小的预涂浆料; c）将单体，凝胶电解质的固化剂和聚合物Li电池电解质分散到溶剂中，并过滤所得分散体以获得预涂凝胶电解质浆料; 和d）通过多层一步涂布工艺将步骤b）和c）中获得的预涂浆料直接涂布在集电器和聚酯的复合膜上，以获得电极的两层复合结构的电池电极片 活性材料/凝胶电解质或电极活性材料/凝胶电解质/电极活性材料的三层复合结构。
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4.发明授权公开(公告)号：US08343655B2
公开(公告)日：2013-01-01
申请号：US12720298
申请日：2010-03-09
Applicant: Xin Zhang , Yanchuan Guo , Haitao Xu , Qiangli Gao , Rongfu Li , Ying Cui , Yuanfen Hu , Keli Chen
Inventor： Xin Zhang , Yanchuan Guo , Haitao Xu , Qiangli Gao , Rongfu Li , Ying Cui , Yuanfen Hu , Keli Chen
CPC classification number: H01M2/1673 , H01M2/168 , H01M4/0404 , H01M4/364 , H01M10/0436 , H01M10/0525 , H01M10/0565 , H01M10/0585 , H01M2300/0085
Abstract: The present invention relates to a gel polymer Li-ion battery electrode slice and a method for preparing the same. The electrode slice comprises a two-layer composite structure of electrode active material/gel electrolyte or a three-layer composite structure of electrode active material/gel electrolyte/electrode active material. The method includes preparation and filtration of gel polymer Li-ion battery electrode slurry and gel polymer electrolyte slurry and a multi-layer one-step coating process, and includes the following steps: a) grinding an electrode active material, and adding an adhesive, a surfactant, a dispersant thereto to obtain a raw slurry of the electrode active material; b) filtering the raw slurry of the electrode active material to obtain a uniform, fine precoating slurry; c) dispersing a monomer, a curing agent of the gel electrolyte and a polymer Li battery electrolyte into a solvent, and filtering the resultant dispersion to obtain a precoating gel electrolyte slurry; and d) coating directly the precoating slurries obtained in steps b) and c) on a composite film of current collector and polyester by a multi-layer one-step coating process to obtain a battery electrode slice of a two-layer composite structure of electrode active material/gel electrolyte or of a three-layer composite structure of electrode active material/gel electrolyte/electrode active material.
Abstract translation: 本发明涉及一种凝胶聚合物锂离子电池电极片及其制备方法。 电极片包括电极活性材料/凝胶电解质的双层复合结构或电极活性材料/凝胶电解质/电极活性材料的三层复合结构。 该方法包括制备和过滤凝胶聚合物锂离子电池电极浆料和凝胶聚合物电解质浆料和多层一步涂层工艺，包括以下步骤：a）研磨电极活性材料，加入粘合剂， 表面活性剂，分散剂，得到电极活性物质的原料浆料; b）过滤电极活性材料的原料浆料，得到均匀，细小的预涂浆料; c）将单体，凝胶电解质的固化剂和聚合物Li电池电解质分散到溶剂中，并过滤所得分散体以获得预涂凝胶电解质浆料; 和d）通过多层一步涂布工艺将步骤b）和c）中获得的预涂浆料直接涂布在集电器和聚酯的复合膜上，以获得电极的两层复合结构的电池电极片 活性材料/凝胶电解质或电极活性材料/凝胶电解质/电极活性材料的三层复合结构。
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