Anode for lithium metal battery, method for manufacturing same, and lithium metal battery comprising same
US-2019131617-A1 · May 2, 2019 · US
Fluoropolymer membrane for electrochemical devices
US11088419B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11088419-B2 |
| Application number | US-201716310412-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 13, 2017 |
| Priority date | Jun 14, 2016 |
| Publication date | Aug 10, 2021 |
| Grant date | Aug 10, 2021 |
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Abstract
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The present invention pertains to a membrane for an electrochemical device, to a process for manufacturing said membrane and to use of said membrane in a process for manufacturing an electrochemical device.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electrochemical device comprising at least one membrane between a positive electrode (E) and a negative electrode (E), said membrane comprising: at least one polymer (F-h), wherein polymer (F-h) is a fluoropolymer hybrid organic/inorganic composite, and a liquid medium (L) comprising at least one organic carbonate and LiPF 6 , and wherein at least one of the positive electrode (E) and the negative electrode (E) comprises: a current collector, and adhered to said current collector, at least one fluoropolymer layer comprising: at least one polymer (F), wherein polymer (F) is a fluoropolymer, at least one electro-active compound (EA), a liquid medium (L) comprising at least one metal salt (M), optionally, at least one conductive compound (C), and optionally, one or more additives. 2. The electrochemical device according to claim 1 , wherein polymer (F) of any of the positive electrode (E) and the negative electrode (E) is a functional polymer (F) comprising recurring units derived from at least one fluorinated monomer, at least one functional hydrogenated monomer comprising at least one carboxylic acid end group and, optionally, at least one hydrogenated monomer different from said functional hydrogenated monomer comprising at least one carboxylic acid end group. 3. The electrochemical device according to claim 2 , wherein the functional hydrogenated monomer comprising at least one carboxylic acid end group of the functional polymer (F) is of formula (V): wherein each of R 1 , R 2 and R 3 , equal to or different from each other, is independently a hydrogen atom or a C 1 -C 3 hydrocarbon group. 4. The electrochemical device according to claim 1 , wherein medium (L) in any of the positive electrode (E) and the negative electrode (E) comprises, at least one organic carbonate, LiPF 6 and, optionally, one or more additives.
Assignees
Inventors
Classifications
- H01M10/0525Primary
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Moulding; Embossing; Cutting · CPC title
fluorine containing heterogeneous membranes · CPC title
containing fluorine · CPC title
Vinylidene fluoride · CPC title
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Frequently asked questions
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- What does patent US11088419B2 cover?
- The present invention pertains to a membrane for an electrochemical device, to a process for manufacturing said membrane and to use of said membrane in a process for manufacturing an electrochemical device.
- Who is the assignee on this patent?
- Solvay, Commissariat A L Energie Atomique Et Aux Energies Alternatives, Commissariat Energie Atomique
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 10 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).