Electrolyte and lithium ion battery comprising same
An electrolyte and electrolyte technology, which is applied in secondary batteries, secondary battery repair/maintenance, circuits, etc., can solve problems such as unguaranteed performance, deterioration of transition metal ion complexing ability, and insufficient positive interface stability.
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[0051] The present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the following examples are only for illustrating and explaining the present invention, and should not be construed as limiting the protection scope of the present invention. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit of the technical solution of the present invention shall be covered by the protection scope of the present invention.
[0052] In the following examples, lithium cobaltate is selected as the positive electrode active material, and graphite is used as the negative electrode active material. The preparation of the lithium ion battery comprises the following steps:
[0053] (1) Preparation of positive electrode sheet
[0054] The positive electrode active material lithium cobalt oxide (LCO), the binder polyvinylidene fluoride (PVDF), and the c...
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