JP2012156129A - 非水電解質二次電池の作製方法 - Google Patents
非水電解質二次電池の作製方法 Download PDFInfo
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- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000002245 particle Substances 0.000 claims abstract description 67
- 239000011149 active material Substances 0.000 claims abstract description 52
- 230000005291 magnetic effect Effects 0.000 claims abstract description 46
- 239000002002 slurry Substances 0.000 claims abstract description 18
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 8
- 150000003624 transition metals Chemical class 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000008151 electrolyte solution Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 14
- 239000013078 crystal Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000010450 olivine Substances 0.000 claims description 4
- 229910052609 olivine Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 9
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 9
- 239000011230 binding agent Substances 0.000 abstract description 7
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- 230000007423 decrease Effects 0.000 abstract description 2
- 239000003792 electrolyte Substances 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract description 2
- 239000007774 positive electrode material Substances 0.000 description 13
- 239000010410 layer Substances 0.000 description 9
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 6
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 239000007773 negative electrode material Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000001027 hydrothermal synthesis Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000004931 aggregating effect Effects 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
- 230000009194 climbing Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920003026 Acene Polymers 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 230000005303 antiferromagnetism Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002482 conductive additive Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- 229910021445 lithium manganese complex oxide Inorganic materials 0.000 description 1
- ILXAVRFGLBYNEJ-UHFFFAOYSA-K lithium;manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[O-]P([O-])([O-])=O ILXAVRFGLBYNEJ-UHFFFAOYSA-K 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 239000002907 paramagnetic material Substances 0.000 description 1
- 230000005408 paramagnetism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
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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
- 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
- H01M4/139—Processes of manufacture
- H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- 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
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- 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
- H01M4/58—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
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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
-
- 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
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
【解決手段】遷移金属を有する平均の大きさが5nm乃至50nmの酸化物の活物質粒子を電解質、バインダー等と混合してスラリーを形成し、これを集電体に塗布した後、磁場中に放置すると、活物質粒子が凝集し、高密度化する。あるいは、磁場中で活物質粒子を塗布してもよい。このように凝集した活物質粒子を用いることにより電極密度を高めることができる。
【選択図】図1
Description
本実施の形態では、本発明の一態様であるリチウムイオン二次電池の作製方法について説明する。正極活物質の粒子の大きさは、平均値が5nm乃至50nm、好ましくは5nm乃至20nmとなるようにするとよい。
本発明の電気機器の例として、各種の乾電池、充電池等が挙げられる。これらの正極として、例えば、実施の形態1で示した方法で作製されたものを用いればよい。
102 活物質粒子
103 集電体
104 正極
105 上層の電解液
106 磁場発生手段
107 磁力線
200 負極集電体
202 負極活物質層
204 負極
206 筐体
210 セパレータ
220 リング状絶縁体
228 正極集電体
230 正極活物質層
232 正極
240 スペーサー
242 ワッシャー
244 筐体
Claims (7)
- 遷移金属を有する体積の立方根の平均値が5nm乃至50nmの酸化物の活物質粒子と電解液を混合して、スラリーを形成する工程と、
前記スラリーを集電体に塗布する工程と、
前記スラリーを塗布された集電体を0.01テスラ乃至2テスラの磁場中に放置する工程と、
を有する非水電解質二次電池の作製方法。 - 遷移金属を有する体積の立方根の平均値が5nm乃至50nmの酸化物の活物質粒子と電解液を混合して、スラリーを形成する工程と、
前記スラリーを0.01テスラ乃至2テスラの磁場中で集電体に塗布する工程と、
を有する非水電解質二次電池の作製方法。 - 遷移金属を有する体積の立方根の平均値が5nm乃至50nmの酸化物の活物質粒子と電解液を混合して、スラリーを形成する工程と、
前記スラリーを集電体の一の面に塗布する工程と、
前記集電体の他の面に面して、磁場発生手段を移動させる工程と、
を有する非水電解質二次電池の作製方法。 - 請求項1乃至3のいずれか一において、
前記活物質粒子の体積の立方根の平均値は、5nm乃至20nmであることを特徴とする非水電解質二次電池の作製方法。 - 請求項1乃至4のいずれか一において、前記活物質粒子は鉄を有し、オリビン構造を有することを特徴とする非水電解質二次電池の作製方法。
- 請求項1乃至5のいずれか一において、前記活物質粒子はその表面にカーボンがコーティングされていることを特徴とする非水電解質二次電池の作製方法。
- 請求項1乃至6のいずれか一において、前記活物質粒子の60%以上が単結晶であることを特徴とする非水電解質二次電池の作製方法。
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JP2012000995A JP5912534B2 (ja) | 2011-01-07 | 2012-01-06 | 非水電解質二次電池の作製方法 |
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JP2011002257 | 2011-01-07 | ||
JP2011002257 | 2011-01-07 | ||
JP2012000995A JP5912534B2 (ja) | 2011-01-07 | 2012-01-06 | 非水電解質二次電池の作製方法 |
Publications (2)
Publication Number | Publication Date |
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JP2012156129A true JP2012156129A (ja) | 2012-08-16 |
JP5912534B2 JP5912534B2 (ja) | 2016-04-27 |
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JP2012000995A Expired - Fee Related JP5912534B2 (ja) | 2011-01-07 | 2012-01-06 | 非水電解質二次電池の作製方法 |
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US (1) | US9287557B2 (ja) |
JP (1) | JP5912534B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170003212A (ko) * | 2015-06-30 | 2017-01-09 | 주식회사 엘지화학 | 이차 전지, 이를 포함하는 전지 모듈 및 이차 전지의 제조방법 |
JP2017073267A (ja) * | 2015-10-07 | 2017-04-13 | セイコーエプソン株式会社 | 電池用電極、電池用電極の製造方法、電池 |
WO2019176174A1 (ja) * | 2018-03-15 | 2019-09-19 | 株式会社日立製作所 | 正極スラリー、正極、電池セルシート、二次電池 |
Families Citing this family (1)
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KR101924989B1 (ko) | 2011-01-07 | 2018-12-04 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 축전 장치의 제작 방법 |
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2011
- 2011-12-29 US US13/339,604 patent/US9287557B2/en not_active Expired - Fee Related
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JP2011165404A (ja) * | 2010-02-05 | 2011-08-25 | Toyota Motor Corp | 電池用電極の製造方法、当該製造方法により得られた電極、及び、当該電極を備える電池 |
Cited By (4)
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KR20170003212A (ko) * | 2015-06-30 | 2017-01-09 | 주식회사 엘지화학 | 이차 전지, 이를 포함하는 전지 모듈 및 이차 전지의 제조방법 |
KR102003370B1 (ko) | 2015-06-30 | 2019-07-24 | 주식회사 엘지화학 | 이차 전지, 이를 포함하는 전지 모듈 및 이차 전지의 제조방법 |
JP2017073267A (ja) * | 2015-10-07 | 2017-04-13 | セイコーエプソン株式会社 | 電池用電極、電池用電極の製造方法、電池 |
WO2019176174A1 (ja) * | 2018-03-15 | 2019-09-19 | 株式会社日立製作所 | 正極スラリー、正極、電池セルシート、二次電池 |
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US20120177843A1 (en) | 2012-07-12 |
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