Battery positive electrode coating and silicon-based bipolar battery
The invention discloses a battery positive electrode plating layer and a silicon-based bipolar battery, and relates to the technical field of lead-silicon batteries, the battery positive electrode plating layer comprises a NiSi layer and a three-dimensional PbSn layer, the thickness of the NiSi laye...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a battery positive electrode plating layer and a silicon-based bipolar battery, and relates to the technical field of lead-silicon batteries, the battery positive electrode plating layer comprises a NiSi layer and a three-dimensional PbSn layer, the thickness of the NiSi layer is 100-300 nm, the thickness of the PbSn layer is 0.3-3 mm, the content of Sn in the PbSn layer is 0.5%-2.0%, and the balance is lead, the effective contact area with the lead paste is increased through the three-dimensional PbSn layer, the reaction depth of the lead paste is increased, and the three-dimensional PbSn layer structure can solve the problem that the lead paste on the positive grid falls off, so that the cycle life of the battery is prolonged, the utilization rate of active substances is increased, the energy density of the battery is improved, the internal resistance of the battery is reduced, and the high-current discharge capability is improved; and the NiSix layer improves the silicon wafer, redu |
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