公开(公告)号：US09752026B2

公开(公告)日：2017-09-05

申请号：US14779236

申请日：2014-03-17

Applicant: Arkema France

Inventor： Mathieu Sabard ,  Stephane Bizet ,  Jean-Jacques Flat

IPC: C08L51/00 ,  C08L51/06 ,  C08L23/08 ,  C08L87/00 ,  B32B27/06 ,  B32B27/18 ,  B32B27/22 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  C08L51/04 ,  C08G69/08 ,  C08G69/48 ,  C08L77/02

CPC classification number: C08L51/006 ,  B32B27/06 ,  B32B27/18 ,  B32B27/22 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  B32B2307/20 ,  B32B2307/3065 ,  B32B2307/71 ,  B32B2307/714 ,  C08G69/08 ,  C08G69/48 ,  C08L23/0869 ,  C08L51/04 ,  C08L51/06 ,  C08L77/00 ,  C08L77/02 ,  C08L87/005 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2205/03

Abstract: A composition including at least two grafted copolymers, having a polyolefin trunk and polyamide grafts, the polyamide grafts being 15% to 25% by weight of the composition. Also, a multilayered structure including a plurality of adjacent layers, at least one of which has the above composition. The first grafted copolymer is a polyolefin backbone containing a residue of at least one unsaturated monomer (X) and a plurality of polyamide grafts, the polyamide grafts are attached to the polyolefin backbone by the residue of the unsaturated monomer (X). The second copolymer is a grafted elastomeric copolymer of a polyolefin backbone.

公开(公告)号：US20220389178A1

公开(公告)日：2022-12-08

申请号：US17776248

申请日：2020-11-10

Applicant: Arkema France

Inventor： Stephane Bizet ,  Gregory Schmidt ,  Jerome Chauveau

IPC: C08J5/18 ,  H01M10/0525 ,  H01M50/426 ,  H01M10/44 ,  H01M50/449

Abstract: The invention relates to a fluoropolymer film which makes it possible to manufacture a gelled dense membrane which offers a very good compromise between ionic conductivity and mechanical strength after swelling. This membrane is intended for use as a separator for Li-ion batteries.

公开(公告)号：US20230084563A1

公开(公告)日：2023-03-16

申请号：US17795020

申请日：2021-01-29

Applicant: Arkema France

Inventor： Stephane Bizet ,  Anthony Bonnet ,  Oleksandr Korzhenko ,  Samuel Devisme

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/66 ,  H01M50/46

Abstract: The present invention relates generally to the field of electrical energy storage in rechargeable secondary batteries of Li-ion type. More specifically, the invention relates to an electrode formulation for a Li-ion battery, comprising a binder based on a mixture of fluoropolymers. The invention also relates to a process for preparing electrodes using said formulation, by a technique of solvent-free deposition on a metal substrate. The invention relates finally to an electrode obtained by this process and also to Li-ion secondary batteries comprising at least one such electrode.

公开(公告)号：US20230078004A1

公开(公告)日：2023-03-16

申请号：US17795010

申请日：2021-01-29

Applicant: Arkema France

Inventor： Stephane Bizet ,  Anthony Bonnet ,  Oleksandr Korzhenko ,  Samuel Devisme

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M50/46 ,  H01M4/66

Abstract: The present invention relates generally to the field of electrical energy storage in rechargeable secondary batteries of Li-ion type. More specifically, the invention relates to an electrode formulation for a Li-ion battery, comprising a binder based on a mixture of fluoropolymers. The invention also relates to a process for preparing electrodes using said formulation, by a technique of solvent-free deposition on a metal substrate. The invention relates finally to an electrode obtained by this process and also to Li-ion storage batteries comprising at least one such electrode.

公开(公告)号：US20230084468A1

公开(公告)日：2023-03-16

申请号：US17795014

申请日：2021-01-29

Applicant: Arkema France

Inventor： Stephane Bizet ,  Anthony Bonnet ,  Oleksandr Korzhenko ,  Samuel Devisme

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/583 ,  H01M4/587 ,  H01M4/485 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/1395

Abstract: The present invention relates generally to the field of electrical energy storage in rechargeable secondary batteries of Li-ion type. More specifically, the invention relates to an electrode formulation for a Li-ion battery, comprising a binder based on a mixture of fluoropolymers. The invention also relates to a process for preparing electrodes using said formulation, by a technique of solvent-free deposition on a metal substrate. The invention relates finally to an electrode obtained by this process and also to Li-ion secondary batteries comprising at least one such electrode.