3.7v 2200mah 18650 lithium battery

　　What kind of technology is 3.7v 2200mah 18650 lithium battery?

　　What is an 3.7v 2200mah 18650 lithium battery?

　　In layman's terms, an 3.7v 2200mah 18650 lithium battery is a battery with no gas or liquid inside, and all materials exist in solid form. Considering that the most common battery in people's daily life is lithium-ion battery, we will default to all-solid-state lithium-ion battery as the representative of 3.7v 2200mah 18650 lithium battery (ignoring all-solid-state lithium-sulfur and other new batteries for the time being).

　　This article will also focus on all aspects of all-solid-state lithium-ion batteries (hereinafter referred to as all-solid-state batteries) for the benefit of readers.

　　Generally speaking, lithium-ion batteries are mainly composed of positive electrodes, negative electrodes, separators, electrolytes, structural shells and other parts. The electrolyte allows current to be conducted in the form of ions inside the battery. Electrolyte technology is one of the core technologies of lithium batteries and is also a highly profitable component of the current battery industry.

　　Schematic structural diagram of a lithium-ion battery, in which Li+ (lithium ions) conducts through the electrolyte (electrolyte) in the internal circuit

　　However, many readers may have discovered that some of their lithium batteries will bulge after being used for a long time, and in more extreme low-probability events, some may even be dangerous (such as the recent battery explosion of the twist car, which led to related Manufacturing companies and battery companies have encountered comprehensive difficulties). In addition, generally speaking, the operating temperature range of current lithium-ion batteries is limited. At high temperatures above 40 degrees, the life will be shortened sharply, and the safety performance will also have big problems (so Tesla MODELS will have a strict battery temperature range. control system, that’s why).

　　In fact, the safety issues mentioned above are directly related to the electrolyte of the organic system used in our current batteries.

　　In order to solve battery safety issues and increase energy density, the scientific research community and industry are currently developing and producing all-solid-state batteries, which means replacing the separators and electrolytes of traditional lithium-ion batteries with solid electrolyte materials. So let's talk about it, compared to the most common ordinary lithium-ion batteries in our lives, what are the main advantages of all-solid-state batteries?

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