Lithium ion battery
In order to solve the problem of insufficient high-rate charge-discharge performance of the existing lithium ion battery, the invention provides a lithium ion battery, the lithium ion battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte, the positive electrode c...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | In order to solve the problem of insufficient high-rate charge-discharge performance of the existing lithium ion battery, the invention provides a lithium ion battery, the lithium ion battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte, the positive electrode comprises a positive electrode current collector, a conductive layer and a positive electrode material layer which are sequentially stacked, the positive electrode material layer comprises a positive electrode active material selected from LiNiaCobL1-a-bO2Ax, and the negative electrode comprises a negative electrode active material selected from LiNiaCobL1-a-bO2Ax. The non-aqueous electrolyte comprises a non-aqueous organic solvent and lithium bis (fluorosulfonyl) imide; the lithium ion battery satisfies the following conditions: # imgabs0 # and # imgabs1 # 1.4 < = K1 < = 24, 0.5 < = d < = 4, 0.5 < = S < = 3, 3 < = M < = 7, and 1 < = K2 < = 7. The lithium ion battery provided by the invention has relatively low impe |
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