All solid-state lithium sulfur batteries refer to lithium sulfur batteries containing solid electrolytes. Its energy density is about four times that of lithium-ion batteries widely used in electronic devices, and it is cheaper and safer. Its design philosophy completely subverts the inherent battery concept of two electrodes and a pile of electrolyte, which has lasted for 150 to 200 years, and also solves the flammable problem that other chemists have been worried about.

　　Lithium sulfur battery is a type of lithium battery, which uses sulfur as the positive electrode and metal lithium as the negative electrode. The specific capacity is as high as 1675mAh/g, which is much higher than the capacity of lithium cobalt oxide batteries widely used in commerce (<150mAh/g). And sulfur is an environmentally friendly element that has little pollution to the environment, making it a very promising lithium battery.

　　For decades, scientists have been optimistic about lithium-sulfur batteries, which are more efficient and cost-effective than lithium-ion batteries. But its biggest weakness is its short lifespan, so it has not been commercially available. In addition, the use of liquid electrolytes in batteries has also become a constraint for scientists. The liquid electrolyte will help conduct lithium ions in the battery by dissolving Polysulfide. But the downside is that this dissolution process can cause premature damage to the battery. And the new design method of all solid-state lithium sulfur batteries can eliminate these obstacles

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