JP5509193B2 - 非水電解液電池 - Google Patents
非水電解液電池 Download PDFInfo
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- JP5509193B2 JP5509193B2 JP2011502780A JP2011502780A JP5509193B2 JP 5509193 B2 JP5509193 B2 JP 5509193B2 JP 2011502780 A JP2011502780 A JP 2011502780A JP 2011502780 A JP2011502780 A JP 2011502780A JP 5509193 B2 JP5509193 B2 JP 5509193B2
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- flame retardant
- positive electrode
- battery
- aqueous electrolyte
- electrolyte battery
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- 239000011255 nonaqueous electrolyte Substances 0.000 title claims description 28
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 70
- 239000003063 flame retardant Substances 0.000 claims description 70
- 239000000203 mixture Substances 0.000 claims description 47
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 30
- 229910001416 lithium ion Inorganic materials 0.000 claims description 30
- -1 phosphazene compound Chemical class 0.000 claims description 28
- 239000011149 active material Substances 0.000 claims description 15
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 229910052723 transition metal Inorganic materials 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 3
- 230000010220 ion permeability Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000002156 mixing Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000007774 positive electrode material Substances 0.000 description 7
- 238000005979 thermal decomposition reaction Methods 0.000 description 7
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 5
- 239000011889 copper foil Substances 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000009783 overcharge test Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 3
- 239000007773 negative electrode material Substances 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 229910003481 amorphous carbon Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000004414 alkyl thio group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000005110 aryl thio group Chemical group 0.000 description 1
- 125000004104 aryloxy group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 150000001923 cyclic compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 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
- 230000000694 effects Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000004705 ethylthio group Chemical group C(C)S* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000000250 methylamino group Chemical group [H]N(*)C([H])([H])[H] 0.000 description 1
- 125000002816 methylsulfanyl group Chemical group [H]C([H])([H])S[*] 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical class CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000003356 phenylsulfanyl group Chemical group [*]SC1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
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- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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Description
実施例1では、難燃化剤のホスファゼン化合物(株式会社ブリヂストン製、商品名ホスライト(登録商標)、固体状、分解温度250℃以上)とPVdFとを溶解させたNMP溶液に酸化アルミニウムを分散させ分散溶液を調製した。この分散溶液を正極合剤層W2の表面に塗布した。このとき、分散溶液の塗布量を調整することで、正極合剤に対する難燃化剤の配合割合を調整した。下表1に示すように、実施例1では、難燃化剤の配合割合を1wt%の割合に調整した。
表1に示すように、実施例2〜実施例9では、難燃化剤の配合割合を変える以外は実施例1と同様にした。すなわち、難燃化剤の配合割合は、実施例2では2wt%、実施例3では3wt%、実施例4では5wt%、実施例5では6wt%、実施例6では8wt%、実施例7では10wt%、実施例8では15wt%、実施例9では20wt%、にそれぞれ調整した。
表1に示すように、比較例では、正極合剤層W2の表面に難燃化剤層W6を形成しない以外は実施例1と同様にした。すなわち、比較例のリチウムイオン二次電池は従来の電池である。
各実施例および比較例のリチウムイオン二次電池について、過充電試験を行い評価した。過充電試験では、電池中央部に熱電対を配置し、各リチウムイオン二次電池を0.5Cの電流値で充電し続けたときの電池表面の温度を測定した。過充電試験における電池表面最高温度を下表2に示す。
次に、本実施形態のリチウムイオン二次電池20の作用等について説明する。
Claims (9)
- 活物質を含む正極合剤が集電体に塗着された正極板と、活物質を含む負極合剤が集電体に塗着された負極板とが多孔質セパレータを介して配置された非水電解液電池において、前記正極板の片面または両面に、所定温度で分解する難燃化剤のホスファゼン化合物を含む難燃化剤層が配されたことを特徴とする非水電解液電池。
- 前記難燃化剤層はリチウムイオン透過性を有することを特徴とする請求項1に記載の非水電解液電池。
- 前記難燃化剤層は多孔化されていることを特徴とする請求項2に記載の非水電解液電池。
- 前記難燃化剤は80℃以下の温度環境で固体であることを特徴とする請求項1に記載の非水電解液電池。
- 前記難燃化剤は前記正極合剤に対して10wt%以上の割合で前記難燃化剤層に含有されていることを特徴とする請求項1に記載の非水電解液電池。
- 前記難燃化剤は前記正極合剤に対して20wt%以下の割合で前記難燃化剤層に含有されていることを特徴とする請求項5に記載の非水電解液電池。
- 前記正極合剤に含まれる活物質は、リチウム遷移金属複酸化物であることを特徴とする請求項1に記載の非水電解液電池。
- 前記負極合剤に含まれる活物質は、リチウムイオンを吸蔵放出可能な炭素材であることを特徴とする請求項7に記載の非水電解液電池。
- 電池容量が3Ah以上であることを特徴とする請求項8に記載の非水電解液電池。
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JP5753671B2 (ja) * | 2010-09-06 | 2015-07-22 | 株式会社Nttファシリティーズ | 非水電解液二次電池 |
JP5740118B2 (ja) * | 2010-09-06 | 2015-06-24 | 株式会社Nttファシリティーズ | 非水電解液電池 |
JP5623199B2 (ja) * | 2010-09-06 | 2014-11-12 | 株式会社Nttファシリティーズ | 非水電解液電池 |
JP5708358B2 (ja) * | 2011-08-10 | 2015-04-30 | トヨタ自動車株式会社 | リチウムイオン二次電池 |
JP5809888B2 (ja) * | 2011-09-02 | 2015-11-11 | 株式会社Nttファシリティーズ | 非水電解液電池 |
JP5868640B2 (ja) * | 2011-09-02 | 2016-02-24 | 株式会社Nttファシリティーズ | 非水電解液二次電池 |
JP5809889B2 (ja) * | 2011-09-02 | 2015-11-11 | 株式会社Nttファシリティーズ | 非水電解液電池の製造方法 |
JP5896374B2 (ja) * | 2011-09-05 | 2016-03-30 | 株式会社Nttファシリティーズ | 非水電解液電池 |
JP2013054967A (ja) * | 2011-09-05 | 2013-03-21 | Ntt Facilities Inc | 非水電解液電池用セパレータ及び非水電解液電池 |
US9859564B2 (en) | 2013-03-11 | 2018-01-02 | Sanyo Electric Co., Ltd. | Positive electrode for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery |
KR101637896B1 (ko) * | 2013-12-02 | 2016-07-08 | 주식회사 엘지화학 | 절연용 액상물질 수용부를 구비한 전극조립체 |
JP2015084343A (ja) * | 2015-02-03 | 2015-04-30 | 株式会社Nttファシリティーズ | 非水電解液電池 |
JP6777388B2 (ja) * | 2015-02-27 | 2020-10-28 | パナソニック株式会社 | 非水電解質二次電池 |
US10707526B2 (en) | 2015-03-27 | 2020-07-07 | New Dominion Enterprises Inc. | All-inorganic solvents for electrolytes |
CN104882585B (zh) * | 2015-05-04 | 2018-04-27 | 浙江天能能源科技股份有限公司 | 锂离子电池过充保护组合物及方法 |
CN104953125A (zh) * | 2015-05-04 | 2015-09-30 | 浙江天能能源科技有限公司 | 锂离子电池阻燃组合物及方法 |
WO2017037981A1 (ja) * | 2015-08-31 | 2017-03-09 | パナソニックIpマネジメント株式会社 | 非水電解質二次電池 |
US10707531B1 (en) | 2016-09-27 | 2020-07-07 | New Dominion Enterprises Inc. | All-inorganic solvents for electrolytes |
CN113130844A (zh) * | 2021-04-16 | 2021-07-16 | 恒大恒驰新能源汽车研究院(上海)有限公司 | 锂离子电池的电芯的制备方法、锂离子电池及其应用 |
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- 2010-03-03 CN CN2010800024203A patent/CN102160229A/zh active Pending
- 2010-03-03 KR KR1020117004699A patent/KR20110131165A/ko not_active Application Discontinuation
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JPWO2010101180A1 (ja) | 2012-09-10 |
KR20110131165A (ko) | 2011-12-06 |
EP2405519A4 (en) | 2012-08-29 |
CN102160229A (zh) | 2011-08-17 |
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EP2405519A1 (en) | 2012-01-11 |
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