JP2021524989A - リチウム−硫黄電池用電解液及びそれを含むリチウム−硫黄電池 - Google Patents
リチウム−硫黄電池用電解液及びそれを含むリチウム−硫黄電池 Download PDFInfo
- Publication number
- JP2021524989A JP2021524989A JP2020566249A JP2020566249A JP2021524989A JP 2021524989 A JP2021524989 A JP 2021524989A JP 2020566249 A JP2020566249 A JP 2020566249A JP 2020566249 A JP2020566249 A JP 2020566249A JP 2021524989 A JP2021524989 A JP 2021524989A
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- sulfur battery
- electrolytic solution
- heterocyclic compound
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M10/0567—Liquid materials characterised by the additives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/381—Alkaline or alkaline earth metals elements
- H01M4/382—Lithium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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
- H01M2300/002—Inorganic electrolyte
- H01M2300/0022—Room temperature molten salts
-
- 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
- H01M2300/0037—Mixture of solvents
-
- 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
- H01M2300/0037—Mixture of solvents
- H01M2300/004—Three solvents
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
Description
本発明は、リチウム塩、有機溶媒及び添加剤を含むリチウム−硫黄電池用電解液であって、
前記添加剤は、一つ以上の二重結合を含むヘテロ環化合物を含み、
前記ヘテロ環は、酸素原子または硫黄原子を含むリチウム−硫黄電池用電解液を提供する。
前記負極は、リチウム系金属であり、
前記電解液は、前記本発明の電解液であるリチウム−硫黄電池を提供する。
本発明は、リチウム塩、有機溶媒及び添加剤を含むリチウム−硫黄電池用電解液であって、
前記添加剤は、一つ以上の二重結合を含むヘテロ環化合物を含み、
前記ヘテロ環は、酸素原子または硫黄原子を含むリチウム−硫黄電池用電解液に関する。
本発明は、正極;負極;前記正極と負極との間に介在される分離膜;及び電解液を含むリチウム−硫黄電池であって、
前記負極は、リチウム系金属であり、
前記電解液は、上述した本発明の電解液であるリチウム−硫黄電池に関する。
実施例1〜9及び比較例1〜2
硫黄をアセトニトリル中で導電材とバインダーとボールミルを使用してミキシングして正極活物質スラリーを製造した。このとき、導電材としてはカーボンブラックを、バインダーとしてはポリエチレンオキシド(分子量5,000,000g/mol)をそれぞれ用い、混合比率は重量比で硫黄:導電材:バインダーが90:5:5となるようにした。前記正極活物質スラリーをアルミニウム集電体に塗布した後、乾燥して正極を製造した。
前記実施例1〜9及び比較例1〜2で製造したリチウム−硫黄電池を下記の条件で充電及び放電を繰り返しながら寿命特性を測定し、その結果を表2、図1及び図2に示した。
放電:レート0.5C、電圧1.8V、CC
Claims (12)
- リチウム塩、有機溶媒及び添加剤を含むリチウム−硫黄電池用電解液であって、
前記添加剤は、一つ以上の二重結合を含むヘテロ環化合物を含み、
前記ヘテロ環は、酸素原子または硫黄原子を含むリチウム−硫黄電池用電解液。 - 前記ヘテロ環化合物は、3〜15員ヘテロ環化合物であることを特徴とする、請求項1に記載のリチウム−硫黄電池用電解液。
- 前記ヘテロ環化合物は、3〜7員ヘテロ環化合物であることを特徴とする、請求項2に記載のリチウム−硫黄電池用電解液。
- 前記ヘテロ環化合物は、炭素数1〜4のアルキル基、炭素数3〜8の環状アルキル基、炭素数6〜10のアリール基、ハロゲン基、ニトロ基、アミノ基、及びスルホニル基からなる群より選択された1種以上で置換または非置換のヘテロ環化合物;または
炭素数3〜8の環状アルキル基及び炭素数6〜10のアリール基からなる群より選択される1種以上のヘテロ環化合物の多環式化合物;を含むことを特徴とする、請求項2に記載のリチウム−硫黄電池用電解液。 - 前記ヘテロ環化合物は、フラン、2−メチルフラン、3−メチルフラン、2−エチルフラン、2−プロピルフラン、2−ブチルフラン、2,3−ジメチルフラン、2,4−ジメチルフラン、2,5−ジメチルフラン、ピラン、2−メチルピラン、3−メチルピラン、4−メチルピラン、ベンゾフラン、2−(2−ニトロビニル)フラン、チオフェン、2−メチルチオフェン、2−エチルチオフェン、2−プロピルチオフェン、2−ブチルチオフェン、2,3−ジメチルチオフェン、2,4−ジメチルチオフェン及び2,5−ジメチルチオフェンからなる群より選択される1種以上を含むことを特徴とする、請求項4に記載のリチウム−硫黄電池用電解液。
- 前記有機溶媒100体積比に対してヘテロ環化合物は、0.1〜100体積比で含まれることを特徴とする、請求項1から5のいずれか一項に記載のリチウム−硫黄電池用電解液。
- 前記有機溶媒100体積比に対してヘテロ環化合物は、25以上100未満の体積比で含まれることを特徴とする、請求項6に記載のリチウム−硫黄電池用電解液。
- 前記添加剤は、開環重合反応により負極表面に高分子保護膜を形成させることを特徴とする、請求項1から7のいずれか一項に記載のリチウム−硫黄電池用電解液。
- 前記リチウム塩は、LiCl、LiBr、LiI、LiClO4、LiBF4、LiB10Cl10、LiPF6、LiCF3SO3、LiCF3CO2、LiC4BO8、LiAsF6、LiSbF6、LiAlCl4、CH3SO3Li、CF3SO3Li、(CF3SO2)2NLi、(C2F5SO2)2NLi、(SO2F)2NLi、(CF3SO2)3CLi、クロロボランリチウム、低級脂肪族カルボン酸リチウム、4−フェニルホウ酸リチウム及びリチウムイミドからなる群より選択される1種以上を含むことを特徴とする、請求項1から8のいずれか一項に記載のリチウム−硫黄電池用電解液。
- 前記リチウム塩は、0.1〜4Mの濃度で含まれることを特徴とする、請求項1から9のいずれか一項に記載のリチウム−硫黄電池用電解液。
- 正極;負極;前記正極と負極との間に介在される分離膜;及び電解液を含むリチウム−硫黄電池であって、
前記負極は、リチウム系金属であり、
前記電解液は、請求項1から10のいずれかに記載の電解液である、リチウム−硫黄電池。 - 前記リチウム−硫黄電池の初期放電段階で電解液に含まれたヘテロ環化合物の開環重合反応によりリチウム系金属表面に高分子保護膜が形成されることを特徴とする、請求項11に記載のリチウム−硫黄電池。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20180145896 | 2018-11-23 | ||
KR10-2018-0145896 | 2018-11-23 | ||
KR20190039756 | 2019-04-04 | ||
KR10-2019-0039756 | 2019-04-04 | ||
KR1020190144814A KR102126252B1 (ko) | 2018-11-23 | 2019-11-13 | 리튬-황 전지용 전해액 및 이를 포함하는 리튬-황 전지 |
KR10-2019-0144814 | 2019-11-13 | ||
PCT/KR2019/015733 WO2020105981A1 (ko) | 2018-11-23 | 2019-11-18 | 리튬-황 전지용 전해액 및 이를 포함하는 리튬-황 전지 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021524989A true JP2021524989A (ja) | 2021-09-16 |
JP7110400B2 JP7110400B2 (ja) | 2022-08-01 |
Family
ID=74110886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020566249A Active JP7110400B2 (ja) | 2018-11-23 | 2019-11-18 | リチウム-硫黄電池用電解液及びそれを含むリチウム-硫黄電池 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11631896B2 (ja) |
EP (1) | EP3780233A4 (ja) |
JP (1) | JP7110400B2 (ja) |
CN (1) | CN112313827A (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20230207884A1 (en) * | 2021-12-23 | 2023-06-29 | Lg Energy Solution, Ltd. | Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Comprising the Same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002075446A (ja) * | 2000-08-02 | 2002-03-15 | Samsung Sdi Co Ltd | リチウム−硫黄電池 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1412882A (zh) * | 2001-10-15 | 2003-04-23 | 三星Sdi株式会社 | 用于锂-硫电池的电解质和含有该电解质的锂-硫电池 |
US7241535B2 (en) | 2001-10-15 | 2007-07-10 | Samsung Sdi Co., Ltd. | Electrolyte for lithium-sulfur batteries and lithium-sulfur batteries comprising the same |
KR100527827B1 (ko) * | 2003-03-13 | 2005-11-09 | 삼성에스디아이 주식회사 | 비수성 전해질 및 이를 포함하는 리튬 이차 전지 |
KR100578797B1 (ko) | 2003-10-29 | 2006-05-11 | 삼성에스디아이 주식회사 | 리튬 금속 전지용 전해액 및 이를 포함하는 리튬 금속 전지 |
US7316868B2 (en) | 2004-02-11 | 2008-01-08 | Sion Power Corporation | Electrolytes for lithium-sulfur electrochemical cells |
DE102004018929A1 (de) | 2004-04-20 | 2005-11-17 | Degussa Ag | Elektrolytzusammensetzung sowie deren Verwendung als Elektrolytmaterial für elektrochemische Energiespeichersysteme |
GB2437902B (en) | 2005-03-02 | 2010-12-08 | Univ Chicago | Novel redox shuttles for overcharge protection of lithium batteries |
KR101018142B1 (ko) | 2007-01-17 | 2011-02-25 | 주식회사 엘지화학 | 비수 전해액 및 이를 포함하는 이차 전지 |
KR102188424B1 (ko) | 2013-12-19 | 2020-12-08 | 에스케이이노베이션 주식회사 | 리튬 이차전지 전해액 및 이를 포함하는 리튬 이차전지 |
CN104051786B (zh) | 2014-06-24 | 2016-06-15 | 东莞市凯欣电池材料有限公司 | 一种电解液及其制备方法以及一种高电压锂离子电池 |
JP6651219B2 (ja) * | 2014-09-26 | 2020-02-19 | エルジー・ケム・リミテッド | リチウム−硫黄電池およびこれを含む電池モジュール |
KR101858729B1 (ko) | 2015-04-28 | 2018-05-16 | 주식회사 엘지화학 | 리튬 금속 황 화합물을 포함하는 양극 합제 및 그로부터 제조된 양극 |
US10573933B2 (en) | 2015-05-15 | 2020-02-25 | Samsung Electronics Co., Ltd. | Lithium metal battery |
US10770721B2 (en) | 2017-04-10 | 2020-09-08 | Global Graphene Group, Inc. | Lithium metal secondary battery containing anode-protecting polymer layer and manufacturing method |
KR102183657B1 (ko) * | 2017-04-11 | 2020-11-26 | 주식회사 엘지화학 | 리튬-설퍼 전지용 전해액 및 이를 포함하는 리튬-설퍼 전지 |
CN107946644A (zh) * | 2017-11-24 | 2018-04-20 | 杨彬 | 一种环保锂电池电解液 |
CN108281659A (zh) * | 2018-01-18 | 2018-07-13 | 中国计量大学 | 硫正极和锂硫电池 |
-
2019
- 2019-11-18 EP EP19887204.6A patent/EP3780233A4/en active Pending
- 2019-11-18 JP JP2020566249A patent/JP7110400B2/ja active Active
- 2019-11-18 US US17/053,821 patent/US11631896B2/en active Active
- 2019-11-18 CN CN201980042307.9A patent/CN112313827A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002075446A (ja) * | 2000-08-02 | 2002-03-15 | Samsung Sdi Co Ltd | リチウム−硫黄電池 |
Also Published As
Publication number | Publication date |
---|---|
US20210242502A1 (en) | 2021-08-05 |
US11631896B2 (en) | 2023-04-18 |
CN112313827A (zh) | 2021-02-02 |
EP3780233A1 (en) | 2021-02-17 |
JP7110400B2 (ja) | 2022-08-01 |
EP3780233A4 (en) | 2021-06-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102126252B1 (ko) | 리튬-황 전지용 전해액 및 이를 포함하는 리튬-황 전지 | |
CN114556663B (zh) | 锂二次电池用电解液及包括其的锂二次电池 | |
US20230207881A1 (en) | Electrolyte for lithium-sulfur battery and lithium-sulfur battery comprising same | |
US20230299346A1 (en) | Electrolyte for lithium-sulfur battery and lithium-sulfur battery comprising same | |
KR20210127329A (ko) | 리튬-황 전지용 전해액 및 이를 포함하는 리튬-황 전지 | |
JP7376711B2 (ja) | リチウム二次電池用電解液及びこれを含むリチウム二次電池 | |
JP7110400B2 (ja) | リチウム-硫黄電池用電解液及びそれを含むリチウム-硫黄電池 | |
KR20200132015A (ko) | 리튬-황 전지용 전해액 및 이를 포함하는 리튬-황 전지 | |
US20230318039A1 (en) | Electrolyte for lithium secondary battery and lithium secondary battery comprising same | |
CN114556664B (zh) | 锂二次电池用电解液和包含其的锂二次电池 | |
US20240030492A1 (en) | Electrolyte for lithium secondary battery and lithium secondary battery comprising same | |
US20230163360A1 (en) | Electrolyte and lithium secondary battery comprising same | |
KR20230108580A (ko) | 전기화학소자 | |
JP2024509235A (ja) | エネルギー密度及び出力が改善されたリチウム‐硫黄電池 | |
KR20230089021A (ko) | 리튬-황 전지용 전해액 및 이를 포함하는 리튬-황 전지 | |
KR20200046575A (ko) | 리튬 이차전지용 전해액 및 이를 포함하는 리튬 이차전지 | |
CN115868061A (zh) | 锂硫电池用电解液和包含其的锂硫电池 | |
CN114556664A (zh) | 锂二次电池用电解液和包含其的锂二次电池 | |
KR20230108240A (ko) | 비수 전해액 및 이를 포함하는 전기화학소자 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201126 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20201126 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20211108 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20211227 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220208 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20220704 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20220720 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7110400 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |