JP6154467B2 - リチウム二次電池 - Google Patents
リチウム二次電池 Download PDFInfo
- Publication number
- JP6154467B2 JP6154467B2 JP2015529704A JP2015529704A JP6154467B2 JP 6154467 B2 JP6154467 B2 JP 6154467B2 JP 2015529704 A JP2015529704 A JP 2015529704A JP 2015529704 A JP2015529704 A JP 2015529704A JP 6154467 B2 JP6154467 B2 JP 6154467B2
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- Japan
- Prior art keywords
- lithium
- secondary battery
- lithium secondary
- carbon
- active material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910052744 lithium Inorganic materials 0.000 title claims description 51
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 39
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 22
- 229910003481 amorphous carbon Inorganic materials 0.000 claims description 15
- 239000003792 electrolyte Substances 0.000 claims description 14
- 239000007774 positive electrode material Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 12
- 239000008151 electrolyte solution Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 229910003002 lithium salt Inorganic materials 0.000 claims description 11
- 159000000002 lithium salts Chemical class 0.000 claims description 11
- 239000007773 negative electrode material Substances 0.000 claims description 10
- 229910010707 LiFePO 4 Inorganic materials 0.000 claims description 8
- 229910019142 PO4 Inorganic materials 0.000 claims description 7
- 239000010450 olivine Substances 0.000 claims description 7
- 229910052609 olivine Inorganic materials 0.000 claims description 7
- 239000010452 phosphate Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910021385 hard carbon Inorganic materials 0.000 claims description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 6
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 6
- 229910021384 soft carbon Inorganic materials 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 229910013870 LiPF 6 Inorganic materials 0.000 claims description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 229910010238 LiAlCl 4 Inorganic materials 0.000 claims description 3
- 229910015015 LiAsF 6 Inorganic materials 0.000 claims description 3
- 229910015044 LiB Inorganic materials 0.000 claims description 3
- 229910013063 LiBF 4 Inorganic materials 0.000 claims description 3
- 229910013684 LiClO 4 Inorganic materials 0.000 claims description 3
- 229910012513 LiSbF 6 Inorganic materials 0.000 claims description 3
- BEKPOUATRPPTLV-UHFFFAOYSA-N [Li].BCl Chemical compound [Li].BCl BEKPOUATRPPTLV-UHFFFAOYSA-N 0.000 claims description 3
- 150000003949 imides Chemical class 0.000 claims description 3
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Inorganic materials [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 2
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 claims 1
- 239000012046 mixed solvent Substances 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 26
- -1 polyphenylene Polymers 0.000 description 17
- 229910052799 carbon Inorganic materials 0.000 description 14
- 239000002245 particle Substances 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 239000011164 primary particle Substances 0.000 description 9
- 239000004020 conductor Substances 0.000 description 8
- 229910002804 graphite Inorganic materials 0.000 description 8
- 239000010439 graphite Substances 0.000 description 8
- 239000011163 secondary particle Substances 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000007784 solid electrolyte Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
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- 239000011230 binding agent Substances 0.000 description 3
- 239000002388 carbon-based active material Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
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- 238000011160 research Methods 0.000 description 3
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 229910014689 LiMnO Inorganic materials 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- 229910004283 SiO 4 Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910021383 artificial graphite Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
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- 239000000945 filler Substances 0.000 description 2
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- 229910003480 inorganic solid Inorganic materials 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 229910021382 natural graphite Inorganic materials 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 239000011356 non-aqueous organic solvent Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 229910000319 transition metal phosphate Inorganic materials 0.000 description 2
- PYOKUURKVVELLB-UHFFFAOYSA-N trimethyl orthoformate Chemical compound COC(OC)OC PYOKUURKVVELLB-UHFFFAOYSA-N 0.000 description 2
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical compound FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 1
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- PPDFQRAASCRJAH-UHFFFAOYSA-N 2-methylthiolane 1,1-dioxide Chemical compound CC1CCCS1(=O)=O PPDFQRAASCRJAH-UHFFFAOYSA-N 0.000 description 1
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- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
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- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
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- 229910005319 Li(Fe, Co)PO4 Inorganic materials 0.000 description 1
- 229910005323 Li(Fe, Mn)PO4 Inorganic materials 0.000 description 1
- 229910005336 Li(Fe, Ni)PO4 Inorganic materials 0.000 description 1
- 229910006097 Li(Mn, Fe)PO4 Inorganic materials 0.000 description 1
- 229910012722 Li3N-LiI-LiOH Inorganic materials 0.000 description 1
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- 229910013043 Li3PO4-Li2S-SiS2 Inorganic materials 0.000 description 1
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- 229910012810 Li3PO4—Li2S-SiS2 Inorganic materials 0.000 description 1
- 229910012797 Li3PO4—Li2S—SiS2 Inorganic materials 0.000 description 1
- 229910010857 LiI—LiOH Inorganic materials 0.000 description 1
- 229910013275 LiMPO Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229910012573 LiSiO Inorganic materials 0.000 description 1
- 229910012346 LiSiO4-LiI-LiOH Inorganic materials 0.000 description 1
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- 229910012348 LiSiO4—LiI—LiOH Inorganic materials 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
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- 229920005608 sulfonated EPDM Polymers 0.000 description 1
- 239000011593 sulfur Substances 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
- VSAISIQCTGDGPU-UHFFFAOYSA-N tetraphosphorus hexaoxide Chemical compound O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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Description
Li1+aM(PO4−b)Xb(1)
前記式において、
Mは、第2族〜第12族の金属からなる群から選ばれる1種以上で;Xは、F、S及びNから選ばれた1種以上で、−0.5≦a≦+0.5、及び、0≦b≦0.1である;
(ii)非晶質カーボンを含む負極活物質;及び
(iii)リチウム塩及びエーテル系溶媒を含むリチウム二次電池用電解液からなることを特徴とするリチウム二次電池に関する。
(i)下記の化学式1のリチウム金属リン酸化物を含む正極活物質:
Li1+aM(PO4−b)Xb(1)
前記式において、
Mは、第2族〜第12族の金属からなる群から選ばれる1種以上で;Xは、F、S及びNから選ばれた1種以上で、−0.5≦a≦+0.5、及び、0≦b≦0.1である;
(ii)非晶質カーボンを含む負極活物質;及び
(iii)リチウム塩及びエーテル系溶媒を含むリチウム二次電池用電解液からなることを特徴とするリチウム二次電池を提供する。
M’は、Al、Mg、Ni、Co、Mn、Ti、Ga、Cu、V、Nb、Zr、Ce、In、Zn及びYから選ばれた1種以上で、Xは、F、S及びNから選ばれた1種以上で、−0.5≦a≦+0.5、0≦x≦0.5、0≦b≦0.1である。
Claims (10)
- (i)下記の化学式1のリチウム金属リン酸化物を含む正極活物質:
Li1+aM(PO4−b)Xb(1)
前記式において、
Mは、第2族〜第12族の金属からなる群から選ばれる1種以上で;Xは、F、S及びNから選ばれた1種以上で、−0.5≦a≦+0.5、及び、0≦b≦0.1である;
(ii)非晶質カーボンを含む負極活物質;及び
(iii)リチウム塩並びにエーテル系溶媒及びエチレンカーボネート(EC)からなる混合溶媒を含むリチウム二次電池用電解液であって、前記エチレンカーボネートの含有量は前記電解液の全体重量を基準にして1重量%〜80重量%である、リチウム二次電池用電解液からなることを特徴とするリチウム二次電池であって、
前記エーテル系溶媒は、テトラヒドロフラン、2―メチルテトラヒドロフラン及びジブチルエーテルから選ばれる一つ以上であることを特徴とする、リチウム二次電池。 - 前記エチレンカーボネート(EC)が電解液の全体重量を基準にして20重量%〜60重量%含まれることを特徴とする、請求項1に記載のリチウム二次電池。
- 前記リチウム塩は、LiCl、LiBr、LiI、LiClO4、LiBF4、LiB10Cl10、LiPF6、LiCF3SO3、LiCF3CO2、LiAsF6、LiSbF6、LiPF6、LiAlCl4、CH3SO3Li、CF3SO3Li、(CF3SO2)2NLi、クロロボランリチウム、4フェニルホウ酸リチウム及びイミドからなる群から選ばれた一つ以上で、濃度は、電解液内で0.5M〜3Mであることを特徴とする、請求項1に記載のリチウム二次電池。
- 前記リチウム金属リン酸化物は、下記の化学式2のオリビン結晶構造のリチウム鉄リン酸化物であることを特徴とする、請求項1に記載のリチウム二次電池:
Li1+aFe1−xM’x(PO4−b)Xb(2)
前記式において、
M’は、Al、Mg、Ni、Co、Mn、Ti、Ga、Cu、V、Nb、Zr、Ce、In、Zn及びYから選ばれた1種以上で、
Xは、F、S及びNから選ばれた1種以上で、
−0.5≦a≦+0.5、0≦x≦0.5、及び0≦b≦0.1である。 - 前記オリビン結晶構造のリチウム鉄リン酸化物はLiFePO4であることを特徴とする、請求項4に記載のリチウム二次電池。
- 前記非晶質カーボンはハードカーボン及び/またはソフトカーボンであることを特徴とする、請求項1に記載のリチウム二次電池。
- 請求項1によるリチウム二次電池を単位電池として含むことを特徴とする電池モジュール。
- 請求項7による電池モジュールを含むことを特徴とする電池パック。
- 請求項8による電池パックを含むことを特徴とするデバイス。
- 前記デバイスは、ハイブリッド電気自動車、プラグ―インハイブリッド電気自動車、または電力貯蔵用システムであることを特徴とする、請求項9に記載のデバイス。
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