JP2020534644A - 溶媒和ポリマー、リチウム塩及び選択されたハロゲン化ポリマーを含む固体高分子電解質並びにそれを含む電池 - Google Patents
溶媒和ポリマー、リチウム塩及び選択されたハロゲン化ポリマーを含む固体高分子電解質並びにそれを含む電池 Download PDFInfo
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Abstract
Description
− リチウム塩のカチオンを溶媒和することができる少なくとも1種のポリマーP1;
− 少なくとも1種のリチウム塩;及び、
− フッ化ビニリデンとヘキサフルオロプロピレン(PVdf−HFP)の少なくとも1種の共重合体P2;
前記電解質は、以下の特徴を有する:
− 前記共重合体P2中のヘキサフルオロプロピレンの含有量が、前記共重合体P2の全重量に対して19重量%以上である;
− 前記共重合体P2の融点が100℃以上である。
以下の組成(重量%)を有する、本発明に従った固体高分子電解質の膜を調製した。
− POEの商品名でAldrich社が販売するポリエチレンオキサイド:48%
− ARKEMA社がKynar(商標)superflex:2500の商品名で販売するPVdF−HFP 81/19:40%
− Aldrich社が販売するリチウムビス(トリフルオロメチルスルホニル)イミド(LiTFSI):12%
上記の実施例1で使用したPVdF−HFP 81/19を、Solef(商標)21510の商品名でSOLVAY社が販売する同量のPVdF−HFP 85/15に置き換えて(膜EPS2)、また、Kynar(商標)flex 2751の商品名でARKEMA社が販売する同量のPVdF−HFP 84/16に置き換えて(膜EPS3)、実施例1の手順を再現した。
Claims (12)
- 以下を含む固体高分子電解質であって、
− リチウム塩のカチオンを溶媒和することができる少なくとも1種のポリマーP1;
− 少なくとも1種のリチウム塩;及び、
− フッ化ビニリデンとヘキサフルオロプロピレン(PVdf−HFP)の少なくとも1種の共重合体P2;
以下の特徴を有する固体高分子電解質:
− 前記共重合体P2中のヘキサフルオロプロピレンの含有量が、前記共重合体P2の全重量に対して19重量%以上である;
− 前記共重合体P2の融点が100℃以上である。 - ポリマーP1が、エチレンオキサイド、メチレンオキサイド、プロピレンオキサイド、エピクロルヒドリン及びアリルグリシジルエーテルのホモポリマー及び共重合体から選択されることを特徴とする、請求項1に記載の固体高分子電解質。
- ポリマーP1が、エチレンオキサイドのホモポリマーから選択されることを特徴とする、請求項1又は2に記載の固体高分子電解質。
- 共重合体P2中のヘキサフルオロプロピレンの含有量が、前記共重合体P2の全重量に対して19重量%〜50重量%の範囲であることを特徴とする、請求項1〜3のいずれか一項に記載の固体高分子電解質。
- 共重合体P2の融点が、100℃〜150℃の範囲であることを特徴とする、請求項1〜4のいずれか一項に記載の固体高分子電解質。
- 共重合体P2が、前記共重合体の全重量に対して19重量%のヘキサフルオロプロピレンを含み、110℃〜125℃の融点を有することを特徴とする、請求項1〜5のいずれか一項に記載の固体高分子電解質。
- 共重合体P2が、固体高分子電解質の全重量の2重量%〜30重量%を占めることを特徴とする、請求項1〜6のいずれか一項に記載の固体高分子電解質。
- リチウム塩が、LiBF4,LiPF6,リチウムビス(トリフルオロメチルスルホニル)イミド、リチウムビス(フルオロスルホニル)イミド、ビス(ペンタフルオロエチルスルホニル)イミド、LiAsF6,LiCF3SO3,LiSbF6,LiSbCl6,Li2TiCl6,Li2SeCl6,Li2B10Cl10,Li2B12Cl12及びリチウムビス(オキサラト)ボレート(LiBOB)から選択されることを特徴とする、請求項1〜7のいずれか一項に記載の固体高分子電解質。
- リチウム塩が、固体高分子電解質の全重量の2重量%〜20重量%を占めることを特徴とする、請求項1〜8のいずれか一項に記載の固体高分子電解質。
- 固体高分子電解質の膜を含むリチウム電池であって、前記膜は、負極を構成する膜と正極を構成する膜との間に配置され、前記正極は、任意に集電装置と接触し、前記固体高分子電解質の膜が、請求項1〜9のいずれか一項に定義された固体高分子電解質の膜であることを特徴とする、リチウム電池。
- 固体高分子電解質の膜が、1〜50μmの厚さを有することを特徴とする、請求項10に記載のリチウム電池。
- 前記電池が、リチウム−金属−ポリマー電池であることを特徴とする、請求項10又は11に記載のリチウム電池。
Applications Claiming Priority (3)
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FR1758601A FR3071360B1 (fr) | 2017-09-18 | 2017-09-18 | Electrolyte polymere solide comprenant un polymere solvatant, un sel de lithium et un polymere halogene selectionne et batterie le comprenant |
FR1758601 | 2017-09-18 | ||
PCT/FR2018/052270 WO2019053388A1 (fr) | 2017-09-18 | 2018-09-17 | Electrolyte polymere solide comprenant un polymere solvatant, un sel de lithium et un polymere halogene selectionne et batterie le comprenant |
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EP (1) | EP3685455B1 (ja) |
JP (1) | JP7104778B2 (ja) |
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CA (1) | CA3075951C (ja) |
ES (1) | ES2901682T3 (ja) |
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FR3107274B1 (fr) | 2020-02-14 | 2022-02-18 | Commissariat Energie Atomique | Polymère en peigne |
EP3940846A1 (en) | 2020-07-17 | 2022-01-19 | Solvay SA | Solid composite electrolyte |
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KR101996642B1 (ko) * | 2018-07-13 | 2019-07-04 | 주식회사 엘지화학 | 저저항 코팅층을 포함하는 전기화학소자용 분리막 및 이를 제조하는 방법 |
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Publication number | Publication date |
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CA3075951C (fr) | 2024-01-30 |
FR3071360A1 (fr) | 2019-03-22 |
EP3685455A1 (fr) | 2020-07-29 |
WO2019053388A1 (fr) | 2019-03-21 |
KR20200050990A (ko) | 2020-05-12 |
ES2901682T3 (es) | 2022-03-23 |
KR102445690B1 (ko) | 2022-09-21 |
FR3071360B1 (fr) | 2019-09-13 |
CN111095603A (zh) | 2020-05-01 |
JP7104778B2 (ja) | 2022-07-21 |
CN111095603B (zh) | 2022-10-04 |
CA3075951A1 (fr) | 2019-03-21 |
EP3685455B1 (fr) | 2021-10-27 |
US11804619B2 (en) | 2023-10-31 |
US20200280094A1 (en) | 2020-09-03 |
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