Preparation method of pre-lithium positive plate, and formation method and capacity grading method of pre-lithium battery
The invention provides a preparation method of a pre-lithium positive plate, and a formation method and a capacity grading method of a pre-lithium battery. The preparation method of the pre-lithiated positive plate comprises the following steps: preparing positive slurry: uniformly mixing a conducti...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a preparation method of a pre-lithium positive plate, and a formation method and a capacity grading method of a pre-lithium battery. The preparation method of the pre-lithiated positive plate comprises the following steps: preparing positive slurry: uniformly mixing a conductive agent, a binder and a solvent, adding a lithium supplement agent, continuously mixing to obtain transition slurry, uniformly mixing, adding main powder into the transition slurry, and uniformly mixing to obtain the positive slurry; and manufacturing a pole piece: fully stirring and dispersing the positive electrode slurry, uniformly coating the surface of a current collector with the positive electrode slurry, and drying and rolling to obtain the pre-lithiated positive electrode piece.
本申请提供预锂正极片的制备方法、预锂电池的化成方法及分容方法。预锂正极片的制备方法,包括如下步骤:正极浆料配置:先将导电剂、粘结剂和溶剂混合均匀,再加入补锂剂继续混合获得过渡浆料,混合均匀后再在所述过渡浆料中加入主粉,混合均匀得到正极浆料;极片制作:将所述正极浆料充分搅拌分散后,均匀涂布在集流体表面,经烘干、辊轧后得到预锂正极片。 |
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