JP5454459B2 - 非水電解質電池 - Google Patents
非水電解質電池 Download PDFInfo
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- JP5454459B2 JP5454459B2 JP2010272471A JP2010272471A JP5454459B2 JP 5454459 B2 JP5454459 B2 JP 5454459B2 JP 2010272471 A JP2010272471 A JP 2010272471A JP 2010272471 A JP2010272471 A JP 2010272471A JP 5454459 B2 JP5454459 B2 JP 5454459B2
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- positive electrode
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- 239000011255 nonaqueous electrolyte Substances 0.000 title claims description 25
- 239000007784 solid electrolyte Substances 0.000 claims description 77
- 239000000843 powder Substances 0.000 claims description 53
- 239000007774 positive electrode material Substances 0.000 claims description 37
- 239000002245 particle Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 239000012808 vapor phase Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 10
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 229910002995 LiNi0.8Co0.15Al0.05O2 Inorganic materials 0.000 claims description 5
- 125000000101 thioether group Chemical group 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 description 9
- 229910001416 lithium ion Inorganic materials 0.000 description 8
- 229910018130 Li 2 S-P 2 S 5 Inorganic materials 0.000 description 7
- 239000007773 negative electrode material Substances 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910018091 Li 2 S Inorganic materials 0.000 description 3
- 229910000733 Li alloy Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000001989 lithium alloy Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910018119 Li 3 PO 4 Inorganic materials 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002482 conductive additive Substances 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000004549 pulsed laser deposition Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910018111 Li 2 S-B 2 S 3 Inorganic materials 0.000 description 1
- 229910018133 Li 2 S-SiS 2 Inorganic materials 0.000 description 1
- 229910009178 Li1.3Al0.3Ti1.7(PO4)3 Inorganic materials 0.000 description 1
- 229910009271 Li1.4In0.4Ti1.6(PO4)3 Inorganic materials 0.000 description 1
- 229910007619 Li1.8Cr0.8Ti1.2(PO4)3 Inorganic materials 0.000 description 1
- 229910012316 Li3.6Si0.6P0.4O4 Inorganic materials 0.000 description 1
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- 229910012305 LiPON Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000366 colloid method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000000399 optical microscopy Methods 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002203 sulfidic glass Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
本発明の非水電解質電池(リチウム系電池)を作製し、その電池性能を評価した。
LiNi1/3Co1/3Mn1/3O2の粉末(平均粒径3μm)とLi2S‐P2S5系固体電解質の粉末(平均粒径1〜5μm)とを質量比で70:30となるように混合して正極合剤を作製した。次に、正極集電体となるSUS316Lの箔(厚さ20μm)を金型に配置し、その上から正極合剤を充填した後、これを360MPaの圧力で加圧成形して、正極集電体の上に正極層(LiNi1/3Co1/3Mn1/3O2+Li2S‐P2S5系固体電解質)が形成された正極部材を作製した。この正極部材における正極層の厚さは、70μmであった。Li2S‐P2S5系固体電解質には、Li2SとP2S5とをモル比で4:1の割合でボールミリング混合した後、Ar雰囲気中で240℃×1時間の熱処理をしたものを用いた。
試料No.1-1〜1-6の電池について、3.0V〜4.2Vのカットオフ電圧で、100μA/cm2の定電流にて、充放電を1サイクルとする充放電サイクル試験を実施し、充放電サイクル特性を調べた。
Claims (6)
- 正極層と負極層、及びこれら両層の間に介在される固体電解質層を有する非水電解質電池であって、
前記正極層は、正極活物質の粉末と固体電解質の粉末とを含有し、
前記正極活物質は、充放電時の体積変化率が1%以下、かつ、粉末の平均粒径が5μm以下であり、
前記固体電解質層は、気相法により形成されていることを特徴とする非水電解質電池。 - 前記正極活物質が、LiNi1/3Co1/3Mn1/3O2及びLiNi0.8Co0.15Al0.05O2の少なくとも一種であることを特徴とする請求項1に記載の非水電解質電池。
- 前記正極層に含有する前記固体電解質が、硫化物系固体電解質であることを特徴とする請求項1又は2に記載の非水電解質電池。
- 前記正極層における前記正極活物質の粉末の含有量が、50質量%以上90質量%以下であることを特徴とする請求項1〜3のいずれか一項に記載の非水電解質電池。
- 前記固体電解質層が、硫化物系固体電解質を含有することを特徴とする請求項1〜4のいずれか一項に記載の非水電解質電池。
- 前記負極層が、Li金属を含有することを特徴とする請求項1〜5のいずれか一項に記載の非水電解質電池。
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JP2010272471A JP5454459B2 (ja) | 2010-12-07 | 2010-12-07 | 非水電解質電池 |
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JP2010272471A JP5454459B2 (ja) | 2010-12-07 | 2010-12-07 | 非水電解質電池 |
Publications (2)
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JP2012123968A JP2012123968A (ja) | 2012-06-28 |
JP5454459B2 true JP5454459B2 (ja) | 2014-03-26 |
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JP2010272471A Active JP5454459B2 (ja) | 2010-12-07 | 2010-12-07 | 非水電解質電池 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6172295B2 (ja) * | 2013-12-26 | 2017-08-02 | トヨタ自動車株式会社 | リチウム固体電池、リチウム固体電池モジュール、およびリチウム固体電池の製造方法 |
JP6607694B2 (ja) * | 2015-04-30 | 2019-11-20 | 富士フイルム株式会社 | 全固体二次電池、電極活物質層用組成物および全固体二次電池用電極シートならびに全固体二次電池用電極シートおよび全固体二次電池の製造方法 |
JP7453765B2 (ja) | 2019-09-18 | 2024-03-21 | 日産自動車株式会社 | 全固体電池 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003187795A (ja) * | 2001-12-17 | 2003-07-04 | Japan Storage Battery Co Ltd | 非水電解質二次電池用の正極活物質 |
JP4900888B2 (ja) * | 2004-03-10 | 2012-03-21 | 三井金属鉱業株式会社 | リチウム電池用リチウム遷移金属酸化物 |
JP2007184145A (ja) * | 2006-01-06 | 2007-07-19 | Hitachi Vehicle Energy Ltd | リチウム二次電池 |
JP2008091328A (ja) * | 2006-09-04 | 2008-04-17 | Sumitomo Electric Ind Ltd | リチウム二次電池およびその製造方法 |
JP2009259798A (ja) * | 2008-03-19 | 2009-11-05 | Panasonic Corp | 非水電解質二次電池 |
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