Battery formula for 3C multiplying power charging on 4.45 V voltage platform and preparation method of battery formula for 3C multiplying power charging on 4.45 V voltage platform

Abstract

The invention discloses a battery formula for 3C multiplying power charging on a 4.45 V voltage platform and a preparation method thereof, the battery formula comprises a positive electrode and a negative electrode, and is characterized in that the positive electrode comprises lithium cobalt oxide, CNT (carbon nano tube), LITX200 and polyvinylidene fluoride (adhesive), and the negative electrode comprises graphite, SP (carbon black conductive agent), CMC (sodium carboxymethyl cellulose), SBR (styrene butadiene rubber) and NMP (N-methyl pyrrolidone); the ratio of parts of lithium cobalt oxide to CNT (carbon nanotubes) to LITX200 to polyvinylidene fluoride (an adhesive) is 100: 12.5: 0.3: 1, and the ratio of parts of lithium cobalt oxide to CNT (carbon nanotubes) to LITX200 to polyvinylidene fluoride (the adhesive) is 100: 12.5: 0.3: 1; the ratio of the graphite to the SP (carbon black conductive agent) to the CMC (sodium carboxymethyl cellulose) to the SBR (styrene butadiene rubber) to the NMP (N-methyl pyrrolidone) is 100: 0.5: 1.3: 3.1: 1. The battery is thin in thickness, high in energy density, low in compaction density and high in liquid retention coefficient, the gram volume is designed according to 183, the positive electrode adopts a pure carbon black system, and the safety performance and the conductivity of the battery are effectively improved.

Description

technical field [0001] The invention relates to the technical field of 3C rate rapid charging and discharging of high-energy density lithium-ion batteries, in particular to a battery formula for 3C rate charging on a 4.45V voltage platform and a production method thereof. Background technique [0002] With the rapid development of the 5G era, Huawei, OPPP, VIVO, Xiaomi and other mobile phone manufacturers have adopted fast charging mode to improve user experience. 5W, 10W, 22.5W, 65W and even upgrade to 100W fast charging. [0003] However, the charging speed of existing mobile phones is getting faster and faster, but the battery life and cycle have not been significantly improved, so fast charging batteries with high energy density and high cycle are imminent; therefore, it does not meet the existing needs. A 4.45V voltage platform 3C rate charging battery formula and its production method are proposed. Contents of the invention [0004] The purpose of the present inven...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a 4.45V voltage platform 3C rate charging battery formula and its production method, to solve the existing mobile phone charging speed in the above background technology is getting faster and faster, battery life and cycle But there is no obvious improvement, so the problem of fast charging battery with high energy density ratio and high cycle is imminent

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