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  4. Are 18650 Lithium Batteries Harmful to t...

Are 18650 Lithium Batteries Harmful to the Environment?

 Are-18650-Lithium-Batteries-Harmful-to-the-Environment.jpg

The advantages of the 18650 lithium battery are known to many users, but for the environmental protection issues advocated by the society today, let's talk about how harmful the 18650 lithium battery is to the environment?

 

We know that under extreme conditions (such as overcharge, high temperature, etc.), a lithium-ion battery will undergo a violent chemical reaction and generate a large amount of gas. The 18650 battery uses a metal shell, which has a certain strength. When the internal air pressure reaches a certain level, the steel shell will rupture and explode, resulting in a terrifying safety accident.

 

This is why the room where the 18650 battery is tested must generally be protected with layers, and no one can enter during the test. Polymer batteries do not have this problem, even in extreme cases, due to the low strength of the packaging film, as long as the air pressure is slightly higher, it will rupture and will not explode, and the worst case is burning. So in terms of safety, polymer batteries are better than 18650 batteries.

 

But polymer batteries also have their own drawbacks. The main reason is that the cost is high. Since it can be designed according to customer needs, the research and development costs must be included. Moreover, the shapes and types are varied, resulting in various fixtures being non-standard parts in the manufacturing process, which also increases the cost accordingly.

 

In fact, not only 18650 lithium batteries, but also all lithium-ion batteries, because they do not use cadmium, lead and mercury and other substances that are harmful to the environment, they are products that have less burden on the environment. The reason why the word "smaller" is used here is that depending on the structure of the lithium-ion battery, it is possible to use substances such as nickel and cobalt (ternary batteries), which are heavy metals, so it cannot be absolutely said that the environment is correct. No pollution.

 

Of course, the content of these heavy metal substances is very small, so in general, the impact of lithium-ion batteries on the environment is very small. As for the recycling route of lithium-ion batteries, if it refers to the recycling and reuse of battery materials, there is no established way in the world. General recycling and reuse revolves around the recovery of materials such as lithium and cobalt. The basic idea is to chemically obtain lithium and cobalt salts from the battery, and finally get their oxides.

 

Keheng Lithium Battery Co., Ltd. has been specializing in the production and sales of 3.7V cylindrical series lithium batteries and 3.7V square batteries for 10 years. The main models of cylindrical batteries are 18650, 26650, 18500, 17500 and so on. Products have been widely used in various portable digital products, small household appliances, flashlights, headlights, fishing lights, miner's lamps, solar street lights and other products.

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