JP6872562B2 - ニトリル基を有するフッ素化電解質 - Google Patents
ニトリル基を有するフッ素化電解質 Download PDFInfo
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- JP6872562B2 JP6872562B2 JP2018559287A JP2018559287A JP6872562B2 JP 6872562 B2 JP6872562 B2 JP 6872562B2 JP 2018559287 A JP2018559287 A JP 2018559287A JP 2018559287 A JP2018559287 A JP 2018559287A JP 6872562 B2 JP6872562 B2 JP 6872562B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/052—Li-accumulators
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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- H—ELECTRICITY
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0034—Fluorinated solvents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Description
8.2gの1H,1H,11H,11H−パーフルオロ−3,6,9−トリオキサウンデカン−1,11−ジオールを室温において50mlの乾燥アセトニトリル中に溶解させ、Ar下で0.8mlの1MのtBuOKのTHF溶液を加えた。この溶液をAr下で室温において10分間撹拌した。アクリロニトリル(21.2g(0.4mol))を加え、溶液をAr下にて20時間で55℃まで加熱した。ロータリーエバポレーターを使用して溶媒および過剰のアクリロニトリルを溶液から除去した。カラム精製によって、1H−および19F−NMR方法によって同定される、ジニトリル末端パーフルオロポリエーテル生成物の3gの無色油を得た。
10重量%のリチウムビス(トリフルオロメタン)スルホンイミド(LiTFSI)を官能化PFPE化合物である適切な液体中に溶解させることによって、電解質溶液を形成した。LiTFSI溶液を浸透させた多孔質ポリオレフィンセパレータを有する対称コインセルを作製し、電気化学的インピーダンス分光法を行うことによって、この電解質のイオン伝導性率を測定した。結果を以下の表Iに示す。比較のため、メチルカーボネート末端パーフルオロポリエーテル1および2の伝導率結果を示している。
Claims (10)
- 共有結合した1つ以上の末端ニトリル基をそれぞれ有するパーフルオロポリエーテルと、
アルカリ金属塩との混合物を含み、
前記パーフルオロポリエーテルは、
yは、前記パーフルオロポリエーテル中のテトラフルオロエチレンオキシ基のモル分率であり、yは(1−x)と等しく、yは0〜1の間の範囲であり;
nは、前記パーフルオロポリエーテル中の不規則に共分布するジフルオロメチレンオキシ基およびテトラフルオロエチレンオキシ基の平均総数であり、nは1〜50の間の範囲であり;
Rfは、過フッ素化C1〜C8直鎖アルキル基または過フッ素化C1〜C8分岐アルキル基であり;
R1は、C1〜C8直鎖アルキル基、C1〜C8分岐アルキル基、ポリエーテル、シアノエチル、ピロリジン、ピペリジン、モルホリン、4−メチルピペラジン、および、窒素を含有するC5〜C8ヘテロシクロアルキル基からなる群から選択される)
ならびにそれらの組合せからなる群から選択される、
電解質。 - 前記アルカリ金属塩は、リチウム塩である、
請求項1に記載の電解質。 - 前記アルカリ金属塩は、ナトリウム塩である、
請求項1に記載の電解質。 - 前記アルカリ金属塩は、前記電解質の5〜30重量%含まれる、
請求項1に記載の電解質。 - 前記ポリエーテルは、2−メトキシエチルおよび2−(2−メトキシ)エトキシエチルから選択される、
請求項1に記載の電解質。 - 共有結合した1つ以上の末端ニトリル基をそれぞれ有するパーフルオロポリエーテルと、
アルカリ金属塩との混合物を含み、
前記パーフルオロポリエーテルは、
yは、前記パーフルオロポリエーテル中のテトラフルオロエチレンオキシ基のモル分率であり、yは(1−x)と等しく、yは0〜1の間の範囲であり;
nは、前記パーフルオロポリエーテル中の不規則に共分布するジフルオロメチレンオキシ基およびテトラフルオロエチレンオキシ基の平均総数であり、nは1〜50の間の範囲であり;
Rfは、過フッ素化C1〜C8直鎖アルキル基または過フッ素化C1〜C8分岐アルキル基であり;
R2およびR3のそれぞれは、−CN、−H、C1〜C8直鎖アルキル基、C1〜C8分岐アルキル基、ポリエーテル、シアノエチル、ピロリジン、ピペリジン、モルホリン、4−メチルピペラジン、および、窒素を含有するC5〜C8ヘテロシクロアルキル基からなる群から独立して選択される)
ならびにそれらの組合せからなる群から選択される、
電解質。 - アノードと、
カソードと、
前記アノードおよび前記カソードの間の電解質であって、前記アノードおよび前記カソードの両方とイオン連通する電解質と、
を含むリチウム電池であって;
前記電解質は、
共有結合した1つ以上の末端ニトリル基をそれぞれ有するパーフルオロポリエーテルと、
アルカリ金属塩との混合物を含み、
前記電解質は、請求項1又は6に記載の電解質を含む、
リチウム電池。 - 前記アノードは、リチウム金属および合金、黒鉛、チタン酸リチウム、ケイ素、ケイ素合金、ならびにそれらの組合せからなる群から選択される材料を含む、
請求項7に記載のリチウム電池。 - 前記カソードは、ニッケルコバルトアルミニウム酸化物(NCA)、ニッケルコバルトマンガン酸化物(NCM)、LiCoO2、LiFePO4、LiMnPO4、LiNiPO4、LiCoPO4、LiNi0.5Mn1.5O4、Li2MnSiO4、Li2FeSiO4、およびLiMn2O4の粒子、およびそれらの組合せからなる群から選択される材料を含む、
請求項7に記載のリチウム電池。 - リチウムイオンの吸収および放出を行うように構成されたアノードと、
カソード活物質粒子、電子伝導性添加剤、およびカソライトを含むカソードと、
前記カソードの外面に隣接する集電体と、
前記アノードおよび前記カソードの間のセパレータ領域であって、前記アノードおよび前記カソードの間を往復するリチウムイオンの移動を促進するように構成されたセパレータ電解質を含むセパレータ領域と、
を含むリチウム電池であって;
前記カソライトは、
共有結合した1つ以上の末端ニトリル基をそれぞれ有するパーフルオロポリエーテルと、
アルカリ金属塩との混合物を含み、
前記セパレータ電解質は、請求項1又は6に記載の電解質を含む、
リチウム電池。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/US2016/031685 WO2017196308A1 (en) | 2016-05-10 | 2016-05-10 | Fluorinated electrolytes with nitrile groups |
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JP2019515469A JP2019515469A (ja) | 2019-06-06 |
JP6872562B2 true JP6872562B2 (ja) | 2021-05-19 |
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US (1) | US9917329B2 (ja) |
EP (1) | EP3455896A4 (ja) |
JP (1) | JP6872562B2 (ja) |
KR (1) | KR20190005894A (ja) |
CN (1) | CN109196689B (ja) |
WO (1) | WO2017196308A1 (ja) |
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WO2020068134A1 (en) | 2018-09-30 | 2020-04-02 | Seeo, Inc. | High-energy cathode material particles with oxy-fluoride surfaces for aqueous processing |
CN109860703B (zh) | 2019-01-25 | 2021-04-06 | 宁德新能源科技有限公司 | 一种电解液及电化学装置 |
CN112072169B (zh) * | 2019-06-10 | 2022-06-14 | 惠州比亚迪实业有限公司 | 全固态电解质及其组合物与电极和全固态锂离子电池 |
JPWO2021054202A1 (ja) | 2019-09-18 | 2021-03-25 | ||
WO2021132252A1 (ja) | 2019-12-26 | 2021-07-01 | 昭和電工株式会社 | 含フッ素エーテル化合物、磁気記録媒体用潤滑剤および磁気記録媒体 |
CN112072175B (zh) * | 2020-09-10 | 2021-10-08 | 中国科学院过程工程研究所 | 一种聚合物电解质及其制备方法和应用 |
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2016
- 2016-05-10 KR KR1020187034226A patent/KR20190005894A/ko not_active Application Discontinuation
- 2016-05-10 JP JP2018559287A patent/JP6872562B2/ja active Active
- 2016-05-10 WO PCT/US2016/031685 patent/WO2017196308A1/en unknown
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WO2017196308A1 (en) | 2017-11-16 |
EP3455896A1 (en) | 2019-03-20 |
CN109196689B (zh) | 2020-09-01 |
US9917329B2 (en) | 2018-03-13 |
CN109196689A (zh) | 2019-01-11 |
KR20190005894A (ko) | 2019-01-16 |
US20170331155A1 (en) | 2017-11-16 |
EP3455896A4 (en) | 2020-01-01 |
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