1.
`
`A lithium-ion battery comprising:
`
`CLAIMS
`
`a positive electrode including a positive current collector and a positive conductive
`
`membrane which is formed on the surface of the positive current collector by coating, drying
`
`and compacting a positive mixture slurry containing a positive active material, a positive
`
`conductive additive and a positive binder;
`
`a negative electrode including a negative current collector and a negative conductive
`
`membrane which is formed on the surface of the negative current collector by coating, drying
`
`and compacting a negative mixture slurry containing a negative active material, a negative
`
`conductive additive and a negative binder,
`
`a separator;
`
`an electrolyte, and
`
`a packaging foil,
`
`wherein,
`
`the compacted density of the positive conductive membrane is at a range from
`
`3.9g/cm3 to 4.4g/cm3;
`
`the compacted density of the negative conductive membrane is at a range from
`
`1.55g/cm3 to 1.8g/cm3,
`
`the ratio of the capacity of the negative active material to the capacity of the
`
`positive active material is at a range from 1 to 1.4, the charging rate of said lithium-ion
`
`battery is at a range from 1.3C to SC, wherein the capacity of negative active material / the
`
`capacity of positive active material =(negative coating weight per unit areaX the weight ratio
`
`of negative active materials X the capacity per gram of negative active material)/(positive
`
`coating weight per unit area X the weight ratio of positive active materials X the capacity per
`
`gram of positive active material).
`
`2.
`
`The lithium-ion battery according to claim 1, wherein, the compacted density of said
`
`positive conductive membrane is at a range from 3.95g/cm3 to 4.35g/cm3.
`
`3.
`
`The lithium-ion battery according to claim 1, wherein, the compacted density of said
`
`negative conductive membrane is at a range from 1.55g/cm3 to 1.7 5g/cm3.
`
`4.
`
`The lithium—ion battery according to claim 1, wherein, the ratio of the capacity of the
`
`negative active material to the capacity of the positive active material is at a range from 1.03
`
`13
`
`

`

`to 1.2.
`
`5.
`
`The lithium-ion battery according to claim 1, wherein,
`
`in formation of the negative conductive membrane, the coating weight of solid
`
`components in the negative mixture slurry on the surface of the negative current collector is
`
`at a range from 120mg/1540.25mm2 to 190mg/154O.25mm2;
`
`in formation of the positive conductive membrane, the coating weight of solid
`
`components in the positive mixture slurry on the surface of the positive current collector is at
`
`a range from 230mg/1540.25mm2 to 380mg/1540.25mm2.
`
`6.
`
`The lithium-ion battery according to claim 1, wherein, said positive active material is
`
`at least one selected from the group consisting of lithium cobaltate LiCoOz, lithium
`
`manganate LiMn204, lithium iron phosphate LiFePO4 and ternary material NCM.
`
`7.
`
`The lithium—ion battery according to claim 1, wherein, said negative active material is
`
`carbon material which is at least one selected from the group consisting of soft carbon, hard
`
`carbon, artificial graphite, natural graphite and mesocarbon microbead.
`
`8.
`
`The lithium-ion battery according to claim 1, wherein, said electrolyte is a non-water
`
`electrolyte containing a non-water organic solvent and a lithium salt.
`
`9.
`
`The lithium-ion battery according to claim 8, wherein,
`
`said non-water organic solvent is a mixture of chain ester and cyclic ester;
`
`said chain ester is at least one selected from the group consisting of dimethyl
`
`carbonate DMC, diethyl carbonate DEC, ethyl methyl carbonate EMC, methyl propyl
`
`carbonate 1\/[PC, dipropyl carbonate DPC, fluorine-containing chain ester, sulphur-containing
`
`chain ester and unsaturated carbon-carbon bond-containing chain ester;
`
`said cyclic ester is at least one selected from ethylene carbonate EC, propylene
`
`carbonate PC, vinylene carbonate VC, y-butyrolactone y-BL, trimethylene sulfite, fluorine-
`
`containing cyclic ester, other sulphur-containing cyclic ester or other unsaturated carbon-
`
`carbon bond-containing cyclic ester,
`
`said lithium salt is at least one selected from the group consisting of LlPF6, LiBF4,
`
`LiClO4, LiCF3SO3, LiN(SOzCF3)2 and LiN(SOzC2F5)2.
`
`14
`
`

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