Mottcell New Energy: Introduction to the basic characteristics of zinc-silver batteries

When the term zinc-silver battery is mentioned, many people will feel unfamiliar. Because everyone often hears about lithium batteries such as ternary lithium and iron lithium. Even people who don't understand batteries have heard of it. Not many people know about zinc-silver batteries.

Today, Guan Yongan from Mottcell New Energy will give you a brief introduction so that you can better understand the characteristics of various lithium batteries.

What is a zinc-silver battery? Zinc-silver batteries are commonly known as silver-zinc batteries. Potassium hydroxide or sodium hydroxide is used as the electrolyte, silver is used as the positive electrode material, and zinc is used as the negative electrode material. Zinc-silver battery (-) Zn|KOH (or NaOH)|AgO (or Ag2O) (+ The active material on the positive electrode made of silver is porous silver, and the active material on the negative electrode made of zinc is mainly zinc oxide Pour into the electrolyte, after charging, the silver on the positive electrode becomes divalent silver oxide, and the zinc oxide on the negative electrode becomes zinc.

The main advantage of zinc-silver battery is its high specific energy. Its energy-to-mass ratio (effective electric energy per unit mass) reaches 100W·h/kg～130W·h/kg (3 to 4 times that of lead-acid batteries). It is suitable for the application of zinc-silver batteries for high-current discharge, such as military, aviation, mobile communication equipment, electronic instruments, artificial satellites, and space navigation. Made of button-type miniature zinc-silver batteries are used in electronic watches, hearing aids, computers and pacemakers.

The disadvantages of silver-zinc batteries are also obvious: 1) high cost; 2) short life; 3) poor low temperature performance; 4) not resistant to overcharging.

Due to the above reasons, the special fields where zinc-silver batteries are used are not familiar to everyone, and ordinary people have little contact with them. If it is used in small household appliances, lighting fixtures, toys, precision instruments and other products, you can choose lithium iron phosphate batteries and ternary lithium batteries produced by Mottcell New Energy, who has always been famous for its reliable quality, and can provide customers with different solutions, and one-stop service from battery cells to battery packs to energy storage power products. Let customers avoid detours in product development, production and sales, and quickly achieve a win-win situation.