Is 100% recovery of the battery? Attached to the method of recovery processing of different types of batteries

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Pembekal Stesen Janakuasa Mudah Alih

Any industrial product will generate environmental protection value as long as large quantity centralized production, and the mass production will also improve the energy utilization, and the environmentally friendly environmental protection of fuel and electricity is meaningless. The new energy vehicle can be mainly depends mainly on the national and region to oil energy in the country. Whether it is highly dependent.

New energy vehicles are a plan to respond to energy crises, and environmental protection is just a layer of outerwear. Is battery recycling equal to environmental protection? Mask recently said that Tesla's battery can recover 100%, combined with Tesla's lithium-ion battery recovery plan, this plan is absolutely environmentally friendly, and the results are remarkable. Then, foreign experts jumped out of criticism, there is currently no modern battery can be recovered by 100% because there is a large number of non-recoal materials.

The "100% recovery" in the Tesra report seems to be "100% of the waste battery will be recovered in some way", not "100% recovery per battery". In fact, heavy metals in lithium iron phosphate and ternary lithium battery can be recycled, but the recovery cost is high. There is a data, and the current 1 ton of lithium iron phosphate battery is recovered by multiple processes to purify heavy metals, which is as high as 8,500 yuan, but the market value of the resulting metal is only 9,000 yuan.

One butter battery can be contaminated with 600,000 water, almost a person's drinking water. How to deal with real environmental issues. One reason for the high battery recovery cost is that the major companies in the early days of the industry are eager to have recently, and they will not promote high value-added industries.

With the development of the industry, recycling will become a business, and the real environment will arrive. The production, recycling, energy production, use, and recycling of new energy controversial products are two closed loops, and they are associated with each other. New energy vehicles have environmental advantages in use, which is unable to controvers.

High-speed driving due to wind resistance problems cause high power consumption, so battery life has always been a problem. Reduce energy consumption and improving the two needles of the user, so the new energy vehicle investment in environmentally friendly must work hard in these two aspects. Lightweight, reducing the wind-resistant new energy car with safety, is the future trend.

Energy production environmental issues are the largest fields of disputes, and the rude statement of electricity is equal to burning coal has always existed. It has actually strictly controls the construction of fire power plants in 2016. In 2017, my country's new energy generated appliances accounted for 53.

7%, which has exceeded half. In the environmental protection, the country's actions are much faster than the new energy industry. The reason why new energy is widely promoted is that the petrochemical industry chain has a complex and lengthy, middlemen are also a lot, and the centralized centralized management is high, and the new energy and the Internet are rising in synchronization.

The key is the efficiency, environmental protection Precained by-products. The recovery process of different batteries contains lithium iron phosphate battery waste phosphate positive electrode materials containing rich iron, lithium, etc. The most recovered value is lithium, and iron has a certain recovery value, and the other part is low.

Due to the high value metal such as waste phosphate is not cobalt, nickel is high value metal, the recovery value is lower than other types of waste lithium ion batteries such as NCM ternary materials. Therefore, the high-efficiency and low cost requirements of the waste phosphate battery on the recovery process is higher. At present, the waste phosphate tester is used to recover the valuable metal elements in the positive material of the precipitation phosphate cells by wet metallurgy.

The waste phosphithium iron phosphithoxia is extracted, lithium, iron and phosphorus, etc., the leaching liquid is subjected to a solution in an ionic form, and the leaching liquid is separated and recovered with lithium, iron elements. Lithium is generally recovered in the form of lithium carbonate and lithium phosphate, and iron is generally recovered in the form of iron phosphate and iron hydroxide.

The leaching agent is mainly inorganic acid, such as sulfuric acid, nitric acid and hydrochloric acid, etc. also uses organic acid to leak; oxidant usually use hydrogen peroxide. Useful metal for waste phosphate can be recovered using wet process.

The lead-acid battery has the largest industrial battery for lead storage batteries. The lead accounted for more than 50% of the total cost of the battery, mainly using fire, wet metallurgy technology, and solid phase electrolysis reduction technology. The outer casing is plastic, which can be regenerated.

Lead-acid batteries typically have three recovery methods: a. Manually sorted recycling technology is generally classified by dry batteries, simply separated from zinc skin, plastic cover, carbon stick, etc., residual, water-manganese stone, etc.

This method is simple and easy, but it takes more labor, and the economic benefits are not large. ب After the fire recycling technology, the dry battery is classified, broken, and the rotary kiln is sent to the rotary kiln.

At the high temperature of ~ degrees Celsius, zinc and zinc chloride are oxidized to zinc oxide as the smoke gas, and zinc oxide is recovered with a cyclone dust collector. The residual manganese dioxide and hydromestone enters the residue, further recovering the substances such as manganese, this method is simple, and the general smelter is not need to increase the equipment to recover zinc. C.

Wet recycling technology, according to the principle of zinc and manganese dioxide can be soluble in the principle of acid, after crushing, placed in a leaching slot, adding dilute sulfuric acid (~ L) for leaching, resulting in zinc sulfate solution, available electrolysis The method is made of metal zinc. The filter residue is separated from the copper cap. After the carbon rod, the residue, and the water manganese stone is calcined.

The method used has a baffled leaching method and a direct leaching method. The recycling of the three-yuan battery waste three-dimensional power battery has a high economic feasibility, physical separation recycling technology is more suitable for applications that apply to the recycling of ternary batteries, and the main recovery method used in domestic and foreign technology leading recycling enterprises. Zhongguancun Online, Battery Alliance, Henan Jumei Environmental Protection.