1. High self discharge rate: the zinc electrode is unstable in alkaline solution. After zinc dissolution, self discharge will release hydrogen, which can consume the stored electricity in a short time;

　　2. Unable to charge: This is the most fatal disadvantage of zinc air battery. This battery is a disposable battery and cannot be recharged and recycled;

　　3. Electrolyte is easy to leak: there are many tiny pores on the surface of the zinc air battery, which is easy to leak after a long time of use. In addition, the electrolyte in the battery is highly corrosive, so once leakage occurs, the consequences are unimaginable.

　　It can be seen from the above that the shortcomings of zinc air batteries are fatal, so they cannot completely replace lithium batteries. However, as a more environmentally friendly battery, its development prospects are good. I hope that scientists can overcome the shortcomings of zinc air batteries as soon as possible, so that they can be used in more fields.

　　According to the advantages and disadvantages of zinc batteries, they are mainly used in the field of disposable batteries, while lithium batteries are widely used in electric travel tools, consumer electronic products and energy storage fields due to their long cycle life, good safety and low self discharge rate.

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