JP2013177310A - 燐ドープスピネル構造リチウムチタン酸化物材料及びその製造方法 - Google Patents
燐ドープスピネル構造リチウムチタン酸化物材料及びその製造方法 Download PDFInfo
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- FDLZQPXZHIFURF-UHFFFAOYSA-N [O-2].[Ti+4].[Li+] Chemical compound [O-2].[Ti+4].[Li+] FDLZQPXZHIFURF-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000000463 material Substances 0.000 title claims abstract description 29
- 229910052596 spinel Inorganic materials 0.000 title claims abstract description 11
- 239000011029 spinel Substances 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 12
- 239000008187 granular material Substances 0.000 claims abstract description 61
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 30
- 239000011574 phosphorus Substances 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 35
- 238000005245 sintering Methods 0.000 claims description 33
- 239000010936 titanium Substances 0.000 claims description 26
- 239000002002 slurry Substances 0.000 claims description 23
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 22
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical group [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 18
- 239000002243 precursor Substances 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 15
- 229910052744 lithium Inorganic materials 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229910052719 titanium Inorganic materials 0.000 claims description 11
- 239000004408 titanium dioxide Substances 0.000 claims description 11
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 10
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 7
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- 239000001307 helium Substances 0.000 claims description 5
- 229910052734 helium Inorganic materials 0.000 claims description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- YNQRWVCLAIUHHI-UHFFFAOYSA-L dilithium;oxalate Chemical compound [Li+].[Li+].[O-]C(=O)C([O-])=O YNQRWVCLAIUHHI-UHFFFAOYSA-L 0.000 claims description 3
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims description 3
- PYCBFXMWPVRTCC-UHFFFAOYSA-N ammonium metaphosphate Chemical compound N.OP(=O)=O PYCBFXMWPVRTCC-UHFFFAOYSA-N 0.000 claims description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 2
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims 1
- 239000002344 surface layer Substances 0.000 abstract description 17
- 239000002245 particle Substances 0.000 abstract description 14
- 239000000843 powder Substances 0.000 abstract description 6
- 230000002950 deficient Effects 0.000 description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 17
- 239000001301 oxygen Substances 0.000 description 17
- 229910052760 oxygen Inorganic materials 0.000 description 17
- 239000011651 chromium Substances 0.000 description 14
- 239000011777 magnesium Substances 0.000 description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 13
- 229910052804 chromium Inorganic materials 0.000 description 13
- 229910052749 magnesium Inorganic materials 0.000 description 13
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 10
- 229910001416 lithium ion Inorganic materials 0.000 description 10
- 229910010413 TiO 2 Inorganic materials 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000002904 solvent Substances 0.000 description 7
- 238000005469 granulation Methods 0.000 description 6
- 230000003179 granulation Effects 0.000 description 6
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical compound [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 5
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 5
- 229940069446 magnesium acetate Drugs 0.000 description 5
- 235000011285 magnesium acetate Nutrition 0.000 description 5
- 239000011654 magnesium acetate Substances 0.000 description 5
- 239000011164 primary particle Substances 0.000 description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 239000011268 mixed slurry Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000011163 secondary particle Substances 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- -1 lithium hexafluorophosphate Chemical compound 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000000724 energy-dispersive X-ray spectrum Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/003—Titanates
- C01G23/005—Alkali titanates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/006—Compounds containing, besides chromium, two or more other elements, with the exception of oxygen or hydrogen
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/30—Three-dimensional structures
- C01P2002/32—Three-dimensional structures spinel-type (AB2O4)
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- C01P2002/54—Solid solutions containing elements as dopants one element only
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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Abstract
【解決手段】燐ドープスピネル構造リチウムチタン酸化物材料は、多数のリチウムチタン酸化物粒子を含んでなり、燐は粒子の表層の一部または表層全体にドープされる。表層の厚さは1〜10nmの間とすることができる。燐はリチウムチタン酸化物粒子全体にドープしてもよい。燐ドープスピネル構造リチウムチタン酸化物材料は粉体であってもよく、当該粉体顆粒は、多数のリチウムチタン酸化物粒子からマイクロ級の多孔質顆粒を構成することができる。
【選択図】図2
Description
Claims (12)
- 多数の酸化物顆粒と、燐含有化合物と、脱イオン水とを混合し混合液を得る工程であって、前記酸化物顆粒がリチウムチタン酸化物顆粒であるか、または当該酸化物顆粒がLi4Ti5O12、二酸化チタン及びLi2TiO3を含んでなる混合顆粒である工程と、
60〜90℃の間の何れかの温度にて、前記混合液を乾燥して、乾燥生成物を得る工程と、
第1の焼結雰囲気下で、700〜950℃の間の何れかの温度及び1〜10時間のうちの何れかの時間にて、前記乾燥生成物を焼結する工程と、
を含む、燐ドープスピネル構造リチウムチタン酸化物材料の製造方法。 - 前記燐含有化合物が、燐酸二水素アンモニウム、メタ燐酸アンモニウム、燐酸水素二アンモニウムまたは燐酸であることを特徴とする請求項1に記載の製造方法。
- 前記第1の焼結雰囲気が、空気、アルゴンガス、窒素ガス、ヘリウムガス、水素ガスとアルゴンガスの混合ガス、または水素ガスと窒素ガスの混合ガスであることを特徴とする請求項1に記載の製造方法。
- リチウム源、チタン源及び脱イオン水を混合してスラリーを得る工程と、
前記スラリーを100〜300℃の間の何れかの温度にてスプレー造粒し、多数の前駆体顆粒を作製する工程と、
第2の焼結雰囲気下に、400〜700℃の間の何れかの温度にて、前記多数の前駆体顆粒を0.5〜2時間のうちの何れかの時間焼結し、前記酸化物顆粒を得る工程と、
をさらに含むことを特徴とする請求項1に記載の製造方法。 - 前記リチウム源が、硝酸リチウム、水酸化リチウム、酢酸リチウムまたはシュウ酸リチウムであり、前記チタン源が、二酸化チタンであることを特徴とする請求項4に記載の製造方法。
- 前記第2の焼結雰囲気が、空気、アルゴンガス、窒素ガス、ヘリウムガス、水素ガスとアルゴンガスの混合ガス、または水素ガスと窒素ガスの混合ガスであることを特徴とする請求項4に記載の製造方法。
- 1または1以上のドープ金属源を前記スラリーに混入する工程をさらに含むことを特徴とする請求項4に記載の製造方法。
- 前記リチウム源が、硝酸リチウム、水酸化リチウム、酢酸リチウムまたはシュウ酸リチウムであり、前記チタン源が、二酸化チタンであることを特徴とする請求項7に記載の製造方法。
- 前記第2の焼結雰囲気が、空気、アルゴンガス、窒素ガス、ヘリウムガス、水素ガスとアルゴンガスの混合ガス、または水素ガスと窒素ガスの混合ガスであることを特徴とする請求項7に記載の製造方法。
- 前記燐含有化合物の重量が、前記多数のリチウムチタン酸化物顆粒重量の1%〜20%であることを特徴とする請求項1に記載の製造方法。
- リチウム源、チタン源、燐含有化合物及び脱イオン水を混合してスラリーを得る工程と、
前記スラリーを100〜300℃の間の何れかの温度にてスプレー造粒し、多数の前駆体顆粒を作製する工程と、
焼結雰囲気下に、400〜700℃の間の第1の温度にて、前記多数の前駆体顆粒を0.5〜2時間のうちの第1の時間予焼して、混合物を得る工程と、
前記焼結雰囲気下に、700〜950℃の間の第2の温度にて、前記混合物を1〜10時間のうちの第2の時間焼結する工程と、
を含むリチウムチタン酸化物材料の製造方法。 - 1または1以上のドープ金属源を前記スラリーに混入する工程をさらに含むことを特徴とする請求項11に記載の製造方法。
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TW099144681 | 2010-12-20 | ||
TW099144681A TWI441779B (zh) | 2010-12-20 | 2010-12-20 | 摻雜磷之尖晶石結構鋰鈦氧化物材料及其製備方法 |
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KR20200041233A (ko) * | 2018-10-11 | 2020-04-21 | 삼성전자주식회사 | 혼합전도체, 이를 포함하는 전기화학 소자 및 그 제조방법 |
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US8545735B2 (en) | 2013-10-01 |
CN102544465A (zh) | 2012-07-04 |
US20120153225A1 (en) | 2012-06-21 |
JP5390547B2 (ja) | 2014-01-15 |
CN102544465B (zh) | 2015-04-01 |
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TW201226324A (en) | 2012-07-01 |
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