手机锂电池（lithium-ion battery）

最新推荐文章于 2023-02-22 15:13:55 发布

long_zhimeng

最新推荐文章于 2023-02-22 15:13:55 发布

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分类专栏： cellphone battery 文章标签：手机 lithium-ion battery

本文链接：https://blog.youkuaiyun.com/long_zhimeng/article/details/48085123

本文探讨了手机锂电池的优缺点，详细阐述了充电与放电过程中的注意事项，包括安全问题，如防止过充、过放和过热。同时，提到了电池的储存寿命和C-rate术语的理解。

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Introduction

Lithium-ion (Li-ion) batteries are becoming more common in portable electronic devices due to their high energy density, lack of memory effect, and high charge and discharge rate capabilities.

Advantages and disadvantages

The main advantage of lithium-ion batteries is their high energy density. The main disadvantage of Li-ion batteries is that they require careful attention to safety. Overcharging, overheating, or short-circuiting a charged Li-ion battery can result in fire or explosion.

Lithium ions move from the positive to the negative electrode during charging and from the negative to the positive electrode as the battery is discharged.

Charging and Discharging Li-ion Batteries

Proper charge control and protection circuitry is critical for Li-ion batteries( Figure 1 ). Overcharging a Li-ion battery can lead to a fire or explosion, and overdischarging can permanently damage the battery. Many Li-ion batteries have built-in protection circuitry. Li-ion batteries are usually charged in two steps . The first step is a constant-current charge at 0.5-1C until the batter