公开(公告)号：US20020001721A1

公开(公告)日：2002-01-03

申请号：US09822825

申请日：2001-04-02

Applicant: ATOFINA

Inventor： Benoit Barriere ,  Michael Burchill ,  Yoshiyuki Miyaki

IPC: B32B015/08

CPC classification number: H01M4/623 ,  C08F8/06 ,  C08F2800/20 ,  C08F2810/30 ,  C09D127/22 ,  C09J127/22 ,  H01M4/621 ,  H01M4/667 ,  H01M10/0525 ,  Y10T428/30 ,  Y10T428/3154 ,  Y10T428/31544 ,  Y10T428/31699 ,  C08F8/26 ,  C08F114/22 ,  C08F214/22 ,  C08F214/28

Abstract: Especially for electrodes, there is provided a structure successively comprising a layer of a metal L1, a fluoro primer L2 and a layer of a fluoro polymer L3 in which the flouro primer L2 is derived from a fluoro polymer chemically modified by a partial dehydrofluorination with a base followed by an oxidation step, especially with H2O2. According to one specific form, the structure is an electrode of a lithium-ion battery in which the metal L1 is the collector and the fluoro polymer L3, which has a high content of carbon and/or oxides, is the electroactive layer thereof.

Abstract translation: 特别是对于电极，提供了连续地包括金属层L1，氟底漆L2和氟聚合物L3的层的结构，其中氟引物L2衍生自通过部分脱氟化氢化学改性的氟聚合物， 碱，然后氧化步骤，特别是与H 2 O 2反应。 根据一个具体形式，该结构是其中金属L1是集电体的锂离子电池的电极，并且具有高含量的碳和/或氧化物的氟聚合物L3是其电活性层。

公开(公告)号：US20020168569A1

公开(公告)日：2002-11-14

申请号：US10100181

申请日：2002-03-19

Applicant: ATOFINA

Inventor： Benoit Barriere ,  Philippe Bussi

IPC: H01M004/62 ,  H01M004/66 ,  H01M002/16 ,  H01M004/48

CPC classification number: H01M4/621 ,  H01M2/164 ,  H01M4/623

Abstract: The present invention relates to a lithium-ion battery element which is chosen from the separator and the electroactive layers and which results from the forming of a microcomposite powder comprising a fluoropolymer in the form of particles between 0.1 and 0.5 nullm in size and fillers. The present invention also relates to a lithium-ion battery electrode comprising the above electroactive layer combined with a metal layer. The present invention also relates to a lithium-ion battery comprising at least one element such as the separator, the electroactive layer or the electrode defined above. This microcomposite powder can be prepared by coatomization of an aqueous solution containing the fluoropolymer particles between 0.1 and 0.5 nullm in size and of an aqueous solution of the fillers. It can also be prepared by flocculation or coagulation of an aqueous solution containing the fluoropolymer particles between 0.1 and 0.5 nullm in size and of an aqueous solution of the fillers. The forming of this microcomposite powder consists in preferably forming a film in order to obtain an electrode film or a separator film. Next, these films are joined together to form a battery. This step (assembly, electrolyte filling, packaging, etc.) is known per se.

Abstract translation: 本发明涉及从隔板和电活性层中选择的锂离子电池元件，其由微粒复合材料粉末形成，该微复合材料粉末的尺寸为0.1至0.5μm之间的颗粒形式的含氟聚合物和填料。 本发明还涉及包含与金属层组合的上述电活性层的锂离子电池电极。 本发明还涉及一种锂离子电池，其包含至少一种元件，例如隔膜，电活性层或上述定义的电极。 该微复合粉末可以通过将包含0.1至0.5μm的含氟聚合物颗粒的水溶液和填料的水溶液进行共解聚来制备。 也可以通过使含有0.1〜0.5μm的含氟聚合物粒子的水溶液和填料的水溶液的絮凝或凝结来制备。 这种微复合粉末的形成在于优选形成膜以获得电极膜或隔膜。 接下来，将这些膜连接在一起形成电池。 本步骤（组装，电解液填充，包装等）本身是已知的。