JP2015512131A - 正極と負極の溶接部位の形状が異なる電極組立体及びそれを含む二次電池 - Google Patents
正極と負極の溶接部位の形状が異なる電極組立体及びそれを含む二次電池 Download PDFInfo
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- JP2015512131A JP2015512131A JP2014559843A JP2014559843A JP2015512131A JP 2015512131 A JP2015512131 A JP 2015512131A JP 2014559843 A JP2014559843 A JP 2014559843A JP 2014559843 A JP2014559843 A JP 2014559843A JP 2015512131 A JP2015512131 A JP 2015512131A
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- VROAXDSNYPAOBJ-UHFFFAOYSA-N lithium;oxido(oxo)nickel Chemical compound [Li+].[O-][Ni]=O VROAXDSNYPAOBJ-UHFFFAOYSA-N 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 229910021470 non-graphitizable carbon Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000001008 quinone-imine dye Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 229920005608 sulfonated EPDM Polymers 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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Abstract
Description
LixMyMn2−yO4−zAz
LixNiyMn2−yO4
Li1+x’Ni1−y’−z’−tMny’Coz’M’tO2−wA’w
Li1+x’’Mn2−y’’M’’y’’O4−w’A’’w’
LiaTibO4
140,240,340,440,540,640,740,840,940 正極タブ
110,210,310,410,510,610,710,810,910 正極板
150,250,350,450,550,650,750,850,950 負極タブ
120,220,320,420,520,620,720,820,920 負極板
130,230,330,430,530,630,730,830,930 分離膜
160,260,360,460,560,660,760,860,960 正極リード
170,270,370,470,570,670,770,870,970 負極リード
Claims (20)
- 交互に配置された複数の正極板及び負極板と、
前記正極板と負極板との間に介在する分離膜と、
前記複数の正極板にそれぞれ形成された複数の正極タブ(tab)と、
前記複数の負極板にそれぞれ形成された複数の負極タブと、
前記複数の正極タブに結合される正極リードと、
前記複数の負極タブに結合される負極リードと、を含み、
前記電極タブが電極リードに結合された溶接形状が、正極と負極において互いに異なることを特徴とする、電極組立体。 - 前記正極タブと負極タブの溶接形状は、平面視で電極板の上端に平行な一つ以上の直線であることを特徴とする、請求項1に記載の電極組立体。
- 前記正極タブと負極タブの溶接形状は、平面視で電極板の上端に対して垂直な一つ以上の直線であることを特徴とする、請求項1に記載の電極組立体。
- 前記正極タブと負極タブの溶接形状は、平面視で一つ以上の円形であることを特徴とする、請求項1に記載の電極組立体。
- 前記正極タブと負極タブの溶接形状は、電極板の上端に対して所定の角度で傾斜した一つ以上の斜線であることを特徴とする、請求項1に記載の電極組立体。
- 前記正極タブと負極タブの溶接形状は、平面視で一つ以上の多角形であることを特徴とする、請求項1に記載の電極組立体。
- 前記正極タブと負極タブをなす素材が同一であることを特徴とする、請求項1に記載の電極組立体。
- 前記正極リードと負極リードをなす素材が同一であることを特徴とする、請求項1に記載の電極組立体。
- 交互に配置された複数の正極板及び負極板と、
前記正極板と負極板との間に介在する分離膜と、
前記複数の正極板にそれぞれ形成された複数の正極タブと、
前記複数の負極板にそれぞれ形成された複数の負極タブと、
前記複数の正極タブに結合される正極リードと、
前記複数の負極タブに結合される負極リードと、を含み、
前記正極タブと負極タブの種類は同一であり、前記正極リードと負極リードの種類は互いに異なることを特徴とする、電極組立体。 - 前記正極タブと負極タブは、形状が互いに異なるか、または電極面に対して非対称的に位置していることを特徴とする、請求項1又は9に記載の電極組立体。
- 前記正極リードと負極リードは、形状が互いに異なるか、または電極面に対して非対称的に位置していることを特徴とする、請求項1又は9に記載の電極組立体。
- 前記正極タブと負極タブは、形状が互いに異なるか、または電極面に対して非対称的に位置しており、
前記正極リードと負極リードは、形状が互いに異なるか、または電極面に対して非対称的に位置していることを特徴とする、請求項1又は9に記載の電極組立体。 - 前記正極板は、下記化学式1で表されるスピネル構造のリチウムマンガン複合酸化物を活物質として含むことを特徴とする、請求項1又は9に記載の電極組立体。
[化1]
LixMyMn2−yO4−zAz
(上記式中、0.9≦x≦1.2、0<y<2、0≦z<0.2であり、
Mは、Al、Mg、Ni、Co、Fe、Cr、V、Ti、Cu、B、Ca、Zn、Zr、Nb、Mo、Sr、Sb、W、Ti及びBiからなる群から選択される一つ以上の元素であり、
Aは、−1または−2価の一つ以上のアニオンである。) - 前記化学式1のリチウムマンガン複合酸化物は、下記化学式2で表されるリチウムニッケルマンガン複合酸化物(Lithium Nickel Manganese complex Oxide:LNMO)であることを特徴とする、請求項13に記載の電極組立体。
[化2]
LixNiyMn2−yO4
(上記式中、0.9≦x≦1.2、0.4≦y≦0.5である。) - 前記化学式2のリチウムニッケルマンガン複合酸化物は、LiNi0.5Mn1.5O4またはLiNi0.4Mn1.6O4であることを特徴とする、請求項14に記載の電極組立体。
- 前記正極板は、下記化学式3及び4から選択された1種以上の酸化物を正極活物質として含むことを特徴とする、請求項1又は9に記載の電極組立体。
[化3]
Li1+x’Ni1−y’−z’−tMny’Coz’M’tO2−wA’w
(上記式中、−0.2<x’<0.2、0≦y’≦0.4、0≦z’≦0.4、0≦t≦0.2、0≦w≦0.05、M’=Fe、Cr、Ti、Zn、Vなどの第一遷移金属、Al、Mgなど、A’=S、Se、F、Cl、Iなどの6A族及び7A族元素である。)
[化4]
Li1+x’’Mn2−y’’M’’y’’O4−w’A’’w’
(上記式中、−0.2<x’’<0.2、0≦y’’<0.4、0≦w’≦0.05、M’’=Ni、Mn、Fe、Cr、Ti、Zn、Vなどの第一遷移金属、Al、Mgなど、A’’=S、Se、F、Cl、Iなどの6A族及び7A族元素である。) - 前記正極活物質は、LiNi1/3Mn1/3Co1/3O2、LiNi0.6Co0.2Mn0.2O2、LiNi0.8Co0.1Mn0.1O2、LiMn2O4からなる群から選択される1種以上の酸化物であることを特徴とする、請求項16に記載の電極組立体。
- 前記負極板は、下記化学式5で表されるリチウムチタン酸化物(Lithium Titanium Oxide:LTO)を活物質として含むことを特徴とする、請求項1又は9に記載の電極組立体:
[化5]
LiaTibO4
(上記式中、0.5≦a≦3、1≦b≦2.5である。) - 前記リチウムチタン酸化物は、Li1.33Ti1.67O4またはLiTi2O4であることを特徴とする、請求項18に記載の電極組立体。
- 請求項1乃至19のいずれか1項に記載の電極組立体を含んでいる二次電池。
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PCT/KR2013/003200 WO2013157823A1 (ko) | 2012-04-16 | 2013-04-16 | 양극과 음극의 용접 부위 형상이 다른 전극조립체 및 이를 포함하는 이차전지 |
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EP2804239A4 (en) | 2016-01-13 |
US20140356704A1 (en) | 2014-12-04 |
CN104137303A (zh) | 2014-11-05 |
KR20130116835A (ko) | 2013-10-24 |
EP2804239A1 (en) | 2014-11-19 |
EP2804239B1 (en) | 2017-09-27 |
KR101517054B1 (ko) | 2015-05-06 |
WO2013157823A1 (ko) | 2013-10-24 |
US10103385B2 (en) | 2018-10-16 |
CN104137303B (zh) | 2017-08-08 |
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