Battery anode, preparation method thereof and lithium ion battery using the same

Abstract

The invention provides a battery anode, its preparation method and a lithium ion battery using the same. The battery anode includes a conductive substrate and an anode material coated on the conductive substrate. The anode material comprises an anode active material, a conductive agent and a binder. The anode active material contains, based on its total weight, 5wt%-20wt% of layered nickel cobalt lithium aluminate and 80wt%-95wt% of olivine type lithium iron phosphate. The battery anode has the advantages of high capacity and cycling stability.

Description

technical field

[0001] The present invention relates to the field of lithium batteries, and in particular, the present invention relates to a positive electrode for a battery, a preparation method thereof, and a lithium ion battery using the positive electrode. Background technique

[0002] As a chemical power source, lithium ion battery refers to a secondary battery composed of two compounds that can reversibly intercalate and deintercalate lithium ions as positive and negative electrodes. When the battery is charged, lithium ions are deintercalated from the positive electrode and intercalated in the negative electrode, and vice versa when discharging.

[0003] As a green and high-energy battery, lithium-ion secondary battery has many advantages such as high voltage, high energy density, good cycle performance, wide operating temperature range, small self-discharge, and no memory effect, and is widely used in mobile phones, notebooks, etc. Computers, cameras and various po...

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