JP2018536965A - 全固体リチウム二次電池用固体電解質の製造方法 - Google Patents
全固体リチウム二次電池用固体電解質の製造方法 Download PDFInfo
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- 239000007784 solid electrolyte Substances 0.000 title claims abstract description 186
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 52
- 239000007787 solid Substances 0.000 title abstract description 6
- 239000002243 precursor Substances 0.000 claims abstract description 66
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 239000000243 solution Substances 0.000 claims abstract description 24
- 238000001354 calcination Methods 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005245 sintering Methods 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000000975 co-precipitation Methods 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 8
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- NRJJZXGPUXHHTC-UHFFFAOYSA-N [Li+].[O--].[O--].[O--].[O--].[Zr+4].[La+3] Chemical compound [Li+].[O--].[O--].[O--].[O--].[Zr+4].[La+3] NRJJZXGPUXHHTC-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008139 complexing agent Substances 0.000 claims abstract description 7
- 239000003002 pH adjusting agent Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical group [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 10
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical group [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 claims description 9
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical group [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 4
- 229910020851 La(NO3)3.6H2O Inorganic materials 0.000 claims description 3
- 239000007858 starting material Substances 0.000 abstract description 16
- 239000013078 crystal Substances 0.000 abstract description 13
- 150000002500 ions Chemical class 0.000 abstract description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000002441 X-ray diffraction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 241001012508 Carpiodes cyprinus Species 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910002422 La(NO3)3·6H2O Inorganic materials 0.000 description 2
- 229910008337 ZrO(NO3)2.2H2O Inorganic materials 0.000 description 2
- 229910006219 ZrO(NO3)2·2H2O Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000000157 electrochemical-induced impedance spectroscopy Methods 0.000 description 2
- 238000002847 impedance measurement Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000005279 LLTO - Lithium Lanthanum Titanium Oxide Substances 0.000 description 1
- 229910013553 LiNO Inorganic materials 0.000 description 1
- PHDNGVHIVIYFJP-UHFFFAOYSA-N [Zr].[La].[Li] Chemical compound [Zr].[La].[Li] PHDNGVHIVIYFJP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000006182 cathode active material Substances 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000010406 interfacial reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
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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
- 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
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0562—Solid materials
-
- 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- 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
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
- H01M2300/0071—Oxides
-
- 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
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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- Condensed Matter Physics & Semiconductors (AREA)
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- Conductive Materials (AREA)
- Secondary Cells (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
実施例9の固体電解質を1200℃で5時間焼結して固体電解質焼結体を製造した。
クエット・テイラー渦流反応器の代わりに回分式共沈反応器を用いて固体電解質(LixLayZrzO12)を製造した。詳細工程は次のとおりである。
実施例13の固体電解質を1,200℃で5時間焼結して固体電解質焼結体を製造した。
実施例1〜4の固体電解質のXRD分析結果を図3の(a)に示し、実施例5〜8の固体電解質焼結体のXRD分析結果を図3の(b)に示した。
実施例5〜8及び実施例14の固体電解質焼結体のイオン伝導度をEIS(Electrochemical Impedance Spectroscopy)方法で測定した結果を下記表2に示した。実施例5の固体電解質焼結体のインピーダンスを測定して図4に示した。
実施例9〜11の固体電解質のXRD分析結果を図5に示し、SEM観察結果を図6に示した。
実施例9及び12の固体電解質及び固体電解質焼結体のXRD測定結果を図7の(a)に示し、実施例12の固体電解質焼結体のインピーダンス測定結果を図7(b)に示した。
Claims (20)
- (a)ランタン前駆体、ジルコニウム前駆体及びアルミニウム前駆体を含む金属前駆体溶液と、錯化剤と、pH調節剤とが混合された混合溶液を共沈反応させて固体電解質前駆体スラリーを製造する段階と、
(b)前記固体電解質前駆体スラリーを洗浄し、乾燥させて固体電解質前駆体を製造する段階と、
(c)前記固体電解質前駆体をリチウム源と混合して混合物を製造する段階と、
(d)前記混合物をか焼(calcination)して、アルミニウムがドープされたリチウムランタンジルコニウム酸化物(lithium lanthanum zirconium oxide、LLZO)固体電解質を製造する段階とを含む、固体電解質の製造方法。 - LLZO固体電解質が、下記化学式1で表わされる、請求項1に記載の固体電解質の製造方法。
[化学式1]
LixLayZrzO12
(式中、6≦x≦9、2≦y≦4、1≦z≦3。) - アルミニウムがドープされたリチウムランタンジルコニウム酸化物(lithium lanthanum zirconium oxide、LLZO)固体電解質は、リチウムとアルミニウムの重量比が100:0.01〜100:20である、請求項2に記載の固体電解質の製造方法。
- 段階(a)で、共沈反応が回分式方法によって行われる、請求項1に記載の固体電解質の製造方法。
- 段階(a)で、共沈反応がテイラー渦流状態で行われる、請求項1に記載の固体電解質の製造方法。
- 段階(a)がクエット・テイラー渦流反応器で行われる、請求項5に記載の固体電解質の製造方法。
- テイラー渦流状態のテイラー数が550〜1,500である、請求項6に記載の固体電解質の製造方法。
- テイラー渦流状態のテイラー数が630〜800である、請求項7に記載の固体電解質の製造方法。
- ランタン前駆体がランタン硝酸塩であり、ジルコニウム前駆体がジルコニウム硝酸塩であり、アルミニウム前駆体がアルミニウム硝酸塩である、請求項1に記載の固体電解質の製造方法。
- ランタン硝酸塩がLa(NO3)3・6H2Oであり、ジルコニウム硝酸塩がZrO(NO3)3・6H2Oであり、アルミニウム硝酸塩がAl(NO3)3.9H2Oである、請求項9に記載の固体電解質の製造方法。
- 金属前駆体溶液に含まれるLa:Zr:Alのモル比率がa:b:cであり、aが2〜4、bが1〜3、cが0.2〜0.4である、請求項1に記載の固体電解質の製造方法。
- 金属前駆体溶液に含まれるLa:Zr:Alのモル比率がa:b:cであり、aが2〜4、bが1〜3、cが0.2〜0.3である、請求項11に記載の固体電解質の製造方法。
- 段階(c)のリチウム源のリチウム含有量は、段階(d)の生成物である固体電解質のリチウム含有量100重量部に対して101〜112重量部である、請求項1に記載の固体電解質の製造方法。
- 段階(c)のリチウム源のリチウム含有量は、段階(d)の生成物である固体電解質のリチウム含有量100重量部に対して101〜108重量部である、請求項13に記載の固体電解質の製造方法。
- 段階(d)のか焼が600〜1,000℃で行われる、請求項1に記載の固体電解質の製造方法。
- 前記か焼が1〜12時間行われる、請求項15に記載の固体電解質の製造方法。
- 前記か焼が1〜9時間行われる、請求項16に記載の固体電解質の製造方法。
- 段階(d)の後に、(e)アルミニウムがドープされたLLZO固体電解質を焼結(sintering)して焼結された固体電解質を製造する段階をさらに含む、請求項1に記載の固体電解質の製造方法。
- 焼結が900〜1,300℃で行われる、請求項18に記載の固体電解質の製造方法。
- 固体電解質が立方(cubic)構造および正方(tetragonal)構造の中から選択された1種以上の構造を有する、請求項1に記載の固体電解質の製造方法。
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KR1020150132466A KR101728434B1 (ko) | 2015-09-18 | 2015-09-18 | 전고체 리튬이차전지용 고체전해질의 제조방법 및 그를 포함하는 전고체 리튬이차전지의 제조방법 |
KR10-2015-0132466 | 2015-09-18 | ||
PCT/KR2016/009289 WO2017047939A1 (ko) | 2015-09-18 | 2016-08-23 | 전고체 리튬이차전지용 고체전해질의 제조방법 |
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JP2018065704A (ja) * | 2016-10-17 | 2018-04-26 | 国立大学法人三重大学 | ガーネット型のリチウム−ランタン−ジルコニウム複合酸化物およびその製造方法 |
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JP6692863B2 (ja) * | 2017-07-28 | 2020-05-13 | コリア インスティテュート オブ インダストリアル テクノロジーKorea Institute Of Industrial Technology | 全固体リチウム二次電池用固体電解質の製造方法 |
KR101995829B1 (ko) | 2017-07-28 | 2019-07-03 | 한국생산기술연구원 | 전고체 리튬이차전지용 고체전해질의 제조방법 및 그를 포함하는 전고체 리튬이차전지의 제조방법 |
KR102016916B1 (ko) * | 2017-12-26 | 2019-09-02 | 한국화학연구원 | Llzo 산화물 고체 전해질 분말의 제조방법 |
KR102200967B1 (ko) * | 2019-01-08 | 2021-01-11 | 한국생산기술연구원 | 전고체 리튬이차전지용 갈륨-가돌리늄이 도핑된 고체전해질 및 그의 제조방법 |
CN110265708B (zh) * | 2019-05-30 | 2022-11-25 | 邱越 | 在季铵碱协同作用下合成石榴石结构的锂镧锆氧系固体电解质材料的固相合成方法 |
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CN114206779A (zh) | 2019-08-06 | 2022-03-18 | 罗地亚经营管理公司 | 制备石榴石型无机材料的方法 |
CN110518280B (zh) * | 2019-08-30 | 2021-05-18 | 山东大学 | 一种珊瑚状lalzo的制备方法及其在全固态电池中的应用 |
US11377364B2 (en) | 2019-12-26 | 2022-07-05 | Uchicago Argonne, Llc | Process for preparing doped lithium lanthanum zirconium oxide |
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