According to the actual needs of the battery end, PVDF spot coating with different surface density can be provided to complete the bonding effect to the pole piece under certain heat pressure conditions, shorten the transmission distance of lithium ions and maintain the rigid shape of the battery, and to a certain extent reduce the impact of expansion and contraction of positive and negative electrodes during charging and discharging, compared with spraying, the spot coating bonding effect is more uniform.
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PVDF spot coating
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According to the actual needs of the battery end, PVDF spot coating with different surface density can be provided to complete the bonding effect to the pole piece under certain heat pressure conditions, shorten the transmission distance of lithium ions and maintain the rigid shape of the battery, and to a certain extent reduce the impact of expansion and contraction of positive and negative electrodes during charging and discharging, compared with spraying, the spot coating bonding effect is more uniform.
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