lithium ion rechargeable battery pollution of waste batteries and recycling issues

by:MERITSUN     2019-06-27
Waste batteries will not only cause serious harm to the environment and human health, but also contain important resources,Battery Recycling can not only reduce the damage to the living environment, but also save resources.Daily batteries are produced by chemical action, and the popular saying is that electricity is generated by corrosion.The battery has a disposable battery, a secondary battery and a car battery.
Button battery, normal zinc-disposable batteryManganese batteries and alkaline batteries, most disposable batteries contain mercury.Secondary batteries mainly refer to rechargeable batteries containing heavy metal and cadmium.Waste batteries in cars contain acid and heavy metal lead.
Use more small secondary batteriesCadmium, nickel-hydrogen and lithium-ion batteries.The total usage is only hundreds of millions, most of which are smaller waste batteries with lower recycling value, usually household waste.The civilian dry battery is the largest battery product in China at present, and it is also the most dispersed battery product.
The annual consumption in China is close to 8 billion.Mainly zincManganese and Alkaline manganese dioxide \ r series also have a small amount of silver-Zinc, lithium and other varieties.Due to the scattered use and difficult recycling management, the cost of recycling waste batteries is very high.
Coupled with the lack of scientific and economical methods, garbage batteries are often used as household waste.In the world, waste rechargeable batteries are generally treated by recycling, and waste dry batteries are treated by centralized burial.Some countries have dry battery treatment plants, but the treatment cost is too high and the effect is not good.
government subsidies should be relied on.The current situation in China is that landfill is still the best way.Recycling Technology should develop in the direction of reducing costs and avoiding secondary pollution.
Take the development path of "green battery": developing green batteryEnergy, pollution-Free green batteries that minimize environmental pollution and resource consumption at the beginning of manufacture.To make a virtuous circle of production and recycling, which is truly beneficial to the people, does not harm the people, and does not harm nature.Battery products that are harmful to the environment are mainly electrolyte solutions such as acid and alkali and heavy metal pollution.
Different types of batteries with different contaminants.According to the \ r metal powder supplier, the harmful substances in the battery are mainly zinc, mercury, nickel, lead, and H2S04 in the \ rlead battery;Various alkaline batteries in lithium-ion batteries and KOH in IiPP6 electrolyte.Mercury and its compounds, especially organic mercury compounds with Johnson & Johnson toxicity, faster bio-concentration speed and longer bio-half priceLife of Brain organs.
Cd is easily enriched in plants and animals and is highly toxic and affects the growth of plants and animals.Pb has adverse effects on the chest, kidneys, reproduction, cardiovascular and other organs and systems of human beings, manifested in decreased intelligence, kidney damage, infertility and hypertension.The toxicity of zinc and nickel is relatively small, but within a certain concentration range, it will cause adverse effects and great harm.
Acid and alkali electrolyte solutions in waste batteries can affect the pH value of the soil water system, and the pH value of the soil and water system is acidic or alkaline.Waste batteries are not only harmful to human beings, but also contain a large amount of resources.Such as button cells containing precious metals such as lithium, manganese and silver;lead-Lead in batteries;Cell phone batteries contain cadmium, and the recovery rate of these substances is very high.
Now there are some recycling plants that start to recycle and extract.In addition, zinc, copper, manganese and other resources are also contained in ordinary batteries.Non-The black metal in the waste battery is a valuable natural resource.
if the waste battery can be recycled, it can not only reduce the damage to our living environment, but also save resources
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