Positive pole piece, secondary battery and electric equipment
The invention provides a positive pole piece, a secondary battery and electric equipment. The positive pole piece comprises a current collector and a first safety coating arranged on the surface of at least one side of the current collector, and a positive active material layer is arranged on the su...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a positive pole piece, a secondary battery and electric equipment. The positive pole piece comprises a current collector and a first safety coating arranged on the surface of at least one side of the current collector, and a positive active material layer is arranged on the surface of one side, deviating from the current collector, of the first safety coating; wherein the first safety coating comprises a binder, a conductive agent and lithiated zeolite; wherein the lithiated zeolite is zeolite containing lithium ions; and a lithium-containing material is also loaded in the lithiated zeolite. The positive pole piece is provided with the first safety coating capable of improving the safety performance of the battery, and the first safety coating can contribute active ions in the first charging process of the battery so as to improve the energy density of the battery.
本申请提供了正极极片、二次电池以及用电设备。所述正极极片包括集流体以及设置在所述集流体至少一侧表面的第一安全涂层,所述第一安全涂层背离所述集流体的一侧表面设有正极活性材料层;其中,所述第一安全涂层包括粘结剂、导电剂以及锂化沸石;其中,所述锂化沸石 |
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