KR20200047365A - 리튬-황 이차전지 - Google Patents
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Abstract
Description
도 2는 실시예 1 및 3 내지 7과 비교예 9 내지 14에 따른 리튬-황 이차전지의 ED factor 값을 측정하여 나타낸 그래프이다.
| 전해액 조성 | SC factor | |
| 실시예 1 | 제1 전해액 조성1 ) | 0.50 |
| 실시예 2 | 0.45 | |
| 비교예 1 | 0.30 | |
| 비교예 2 | 0.35 | |
| 비교예 3 | 0.41 | |
| 비교예 4 | 제2 전해액 조성2 ) | 0.50 |
| 비교예 5 | 0.45 | |
| 비교예 6 | 0.30 | |
| 비교예 7 | 0.35 | |
| 비교예 8 | 0.41 | |
| 1)제1 전해액 조성 = Propionitrile:1H,1H,2'H,3H-Decafluorodipropyl ether(3:7, w/w) solvent, 3.0M LiTFSI 2)제2 전해액 조성 = 1,3-Dioxolan:Dimethyl ether(1:1, v/v) solvent, 1.0M LiTFSI, 1.0 wt% LiNO3 |
||
| 제1 용매 | DV2 factor | NS factor | |
| 실시예 1 | Propionitrile | 0.39 | 0.78 |
| 실시예 3 | Dimethylacetamide | 1.02 | 2.04 |
| 실시예 4 | Dimethylformamide | 0.71 | 1.42 |
| 실시예 5 | Gamma-Butyrolactone | 1.21 | 2.42 |
| 실시예 6 | Triethylamine | 0.31 | 0.62 |
| 실시예 7 | 1-iodopropane | 1.40 | 2.80 |
| 비교예 9 | 1,3-Dioxolane | 2.07 | 4.14 |
| 비교예 10 | 1,2-Dimethoxyethane | 2.33 | 4.66 |
| 비교예 11 | Tetrahydrofuran | 2.24 | 4.48 |
| 비교예 12 | Dimethyl sulfoxide | 1.95 | 3.90 |
| 비교예 13 | Propylene carbonate | 1.77 | 3.54 |
| 비교예 14 | Dimethyl carbonate | 9.93 | 19.86 |
| 전해액 조성 | SC factor | ED factor | |
| 실시예 1 | 제1 전해액 조성1 ) | 0.50 | 1004.6 |
| 실시예 2 | 0.45 | 893.0 | |
| 비교예 1 | 0.30 | 593.1 | |
| 비교예 2 | 0.35 | 695.6 | |
| 비교예 3 | 0.41 | 819.4 | |
| 비교예 4 | 제2 전해액 조성2 ) | 0.50 | 877.9 |
| 비교예 5 | 0.45 | 890.8 | |
| 비교예 6 | 0.30 | 654.4 | |
| 비교예 7 | 0.35 | 761.4 | |
| 비교예 8 | 0.41 | 882.5 | |
| 1)제1 전해액 조성 = Propionitrile:1H,1H,2'H,3H-Decafluorodipropyl ether(3:7, w/w) solvent, 3.0M LiTFSI 2)제2 전해액 조성 = 1,3-Dioxolan:Dimethyl ether(1:1, v/v) solvent, 1.0M LiTFSI, 1.0 wt% LiNO3 |
|||
| 제1 용매 | DV2 factor | NS factor | ED factor | |
| 실시예 1 | Propionitrile | 0.39 | 0.78 | 1004.6 |
| 실시예 3 | Dimethylacetamide | 1.02 | 2.04 | 939.4 |
| 실시예 4 | Dimethylformamide | 0.71 | 1.42 | 968.8 |
| 실시예 5 | Gamma-Butyrolactone | 1.21 | 2.42 | 924.7 |
| 실시예 6 | Triethylamine | 0.31 | 0.62 | 1019.5 |
| 실시예 7 | 1-iodopropane | 1.40 | 2.80 | 917.4 |
| 비교예 9 | 1,3-Dioxolane | 2.07 | 4.14 | 567.6 |
| 비교예 10 | 1,2-Dimethoxyethane | 2.33 | 4.66 | 667.0 |
| 비교예 11 | Tetrahydrofuran | 2.24 | 4.48 | 580.5 |
| 비교예 12 | Dimethyl sulfoxide | 1.95 | 3.90 | 376.0 |
| 비교예 13 | Propylene carbonate | 1.77 | 3.54 | 352.4 |
| 비교예 14 | Dimethyl carbonate | 9.93 | 19.86 | 287.6 |
Claims (10)
- 청구항 2에 있어서,
상기 제1 용매는 1.5 이하의 DV2 factor 값을 갖는 것을 특징으로 하는 리튬-황 이차전지. - 청구항 2에 있어서,
상기 제1 용매는 프로피오니트릴, 디메틸아세트아미드, 디메틸포름아미드, 감마-부티로락톤, 트리에틸아민, 1-아이오도프로판 및 이의 조합으로 이루어진 군으로부터 선택되는 것을 특징으로 하는 리튬-황 이차전지. - 청구항 2에 있어서,
상기 제2 용매는 1H,1H,2'H,3H-데카플루오로디프로필 에테르, 디플루오로메틸 2,2,2-트리플루오로에틸 에테르, 1,2,2,2-테트라플루오로에틸 트리플루오로메틸 에테르, 1,1,2,3,3,3-헥사플루오로프로필 디플루오로메틸 에테르, 1H,1H,2'H,3H-데카플루오로디프로필 에테르, 펜타플루오로에틸 2,2,2-트리플루오로에틸 에테르, 1H,1H,2'H-퍼플루오로디프로필 에테르 및 이의 조합으로 이루어진 군으로부터 선택되는 것을 특징으로 하는 리튬-황 이차전지. - 청구항 2에 있어서,
상기 용매는 제1 용매를 1 내지 50 중량% 포함하는 것을 특징으로 하는 리튬-황 이차전지. - 청구항 2에 있어서,
상기 용매는 제2 용매를 50 내지 99 중량% 포함하는 것을 특징으로 하는 리튬-황 이차전지. - 청구항 2에 있어서,
상기 용매는 3:7 내지 1:9 중량비로 제1 용매 및 제2 용매를 포함하는 것을 특징으로 하는 리튬-황 이차전지.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/971,177 US12255331B2 (en) | 2018-10-26 | 2019-10-24 | Lithium-sulfur secondary battery |
| PCT/KR2019/014039 WO2020085811A1 (ko) | 2018-10-26 | 2019-10-24 | 리튬-황 이차전지 |
| JP2020545656A JP7065990B2 (ja) | 2018-10-26 | 2019-10-24 | リチウム‐硫黄二次電池 |
| CN202510426263.7A CN120413750A (zh) | 2018-10-26 | 2019-10-24 | 锂硫二次电池 |
| HUE19874836A HUE072742T2 (hu) | 2018-10-26 | 2019-10-24 | Lítium-kén szekunder akkumulátor |
| PL19874836.0T PL3751640T3 (pl) | 2018-10-26 | 2019-10-24 | Bateria litowo-siarkowa wielokrotnego ładowania |
| ES19874836T ES3040373T3 (en) | 2018-10-26 | 2019-10-24 | Lithium-sulfur secondary battery |
| CN201980018365.8A CN111837260A (zh) | 2018-10-26 | 2019-10-24 | 锂硫二次电池 |
| EP19874836.0A EP3751640B1 (en) | 2018-10-26 | 2019-10-24 | Lithium-sulfur secondary battery |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20180128729 | 2018-10-26 | ||
| KR1020180128729 | 2018-10-26 |
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| Publication Number | Publication Date |
|---|---|
| KR20200047365A true KR20200047365A (ko) | 2020-05-07 |
| KR102829147B1 KR102829147B1 (ko) | 2025-07-03 |
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| Country | Link |
|---|---|
| US (1) | US12255331B2 (ko) |
| EP (1) | EP3751640B1 (ko) |
| JP (1) | JP7065990B2 (ko) |
| KR (1) | KR102829147B1 (ko) |
| CN (2) | CN120413750A (ko) |
| ES (1) | ES3040373T3 (ko) |
| HU (1) | HUE072742T2 (ko) |
| PL (1) | PL3751640T3 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018064365A1 (en) | 2016-09-28 | 2018-04-05 | Sepion Technologies, Inc. | Electrochemical cells with ionic sequestration provided by porous separators |
| US12021224B2 (en) * | 2018-11-22 | 2024-06-25 | Lg Energy Solution, Ltd. | Lithium-sulfur secondary battery |
| WO2020149659A1 (ko) | 2019-01-16 | 2020-07-23 | 주식회사 엘지화학 | 리튬 이차전지 |
| EP3863089B1 (en) * | 2019-01-16 | 2026-04-01 | LG Energy Solution, Ltd. | Lithium secondary battery |
| WO2022092700A1 (ko) * | 2020-10-29 | 2022-05-05 | 주식회사 엘지에너지솔루션 | 보레이트계 리튬염을 함유하는 전해질을 포함하는 리튬-황 이차전지 |
| EP4595143A1 (en) * | 2022-09-27 | 2025-08-06 | Sepion Technologies, Inc. | Ternary solvent electrolytes for high voltage and high rate lithium batteries |
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| KR20150088913A (ko) | 2011-03-24 | 2015-08-03 | 닛본 덴끼 가부시끼가이샤 | 2차 전지 |
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| CN104080780B (zh) | 2011-11-30 | 2018-04-13 | 索尔维公司 | 氟化的麦德鲁姆酸的衍生物、其制备方法、及其作为溶剂添加剂的用途 |
| WO2015083314A1 (ja) | 2013-12-03 | 2015-06-11 | 株式会社アルバック | リチウム硫黄二次電池 |
| US20170125171A1 (en) | 2014-04-23 | 2017-05-04 | Lg Chem, Ltd. | Organic-inorganic hybrid solar cell |
| KR102050836B1 (ko) | 2015-12-08 | 2019-12-03 | 주식회사 엘지화학 | 리튬이차전지용 전해질 및 이를 포함하는 리튬이차전지 |
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| KR102050837B1 (ko) | 2016-02-03 | 2019-12-03 | 주식회사 엘지화학 | 리튬-설퍼 전지용 전해액 및 이를 포함하는 리튬-설퍼 전지 |
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| KR102050838B1 (ko) | 2016-04-22 | 2019-12-03 | 주식회사 엘지화학 | 리튬-설퍼 전지용 전해액 및 이를 포함하는 리튬-설퍼 전지 |
| JP2019527454A (ja) | 2016-07-04 | 2019-09-26 | フンダシオン シデテック | リチウム硫黄電池用のスルフィド/ポリスルフィド系イオン液体電解質 |
| US10224571B2 (en) | 2016-09-01 | 2019-03-05 | GM Global Technology Operations LLC | Fluorinated ether as electrolyte co-solvent for lithium metal based anode |
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2019
- 2019-10-22 KR KR1020190131538A patent/KR102829147B1/ko active Active
- 2019-10-24 CN CN202510426263.7A patent/CN120413750A/zh active Pending
- 2019-10-24 PL PL19874836.0T patent/PL3751640T3/pl unknown
- 2019-10-24 HU HUE19874836A patent/HUE072742T2/hu unknown
- 2019-10-24 CN CN201980018365.8A patent/CN111837260A/zh active Pending
- 2019-10-24 EP EP19874836.0A patent/EP3751640B1/en active Active
- 2019-10-24 JP JP2020545656A patent/JP7065990B2/ja active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| PL3751640T3 (pl) | 2025-10-13 |
| KR102829147B1 (ko) | 2025-07-03 |
| EP3751640A1 (en) | 2020-12-16 |
| EP3751640B1 (en) | 2025-07-16 |
| EP3751640A4 (en) | 2021-06-16 |
| US12255331B2 (en) | 2025-03-18 |
| HUE072742T2 (hu) | 2025-12-28 |
| ES3040373T3 (en) | 2025-10-30 |
| CN111837260A (zh) | 2020-10-27 |
| JP7065990B2 (ja) | 2022-05-12 |
| US20210104745A1 (en) | 2021-04-08 |
| CN120413750A (zh) | 2025-08-01 |
| JP2021516421A (ja) | 2021-07-01 |
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