How to clean up the lithium battery

Lithium battery, with the value of resource reuse, promotes recycling; such as disposable low- or mercury-free lithium-ion batteries, which are not hazardous wastes, have low environmental pollution, and do not encourage centralized recycling of such batteries. Handle with household waste.

Haha, I also have a headache. The lab has a pile of waste batteries, waste pole pieces, mobile phone lithium batteries, and ternary power batteries. This is very valuable because it contains precious metals such as cobalt nickel, negative copper and graphite. Lithium batteries are harmful because they contain organic solvent electrolytes, and they are not dismantled and discarded anywhere. However, the recycling work in the society is almost blank, which is also a good point for recycling in our industry. If it is convenient, the nearby electronic accessories market may have recycling, or nearby laboratory factories.

The traditional recycling idea is to separate various metal elements and make metal salts for sale, such as lithium carbonate and lithium oxalate. This kind of thinking is suitable for small-scale recycling factories because it is simple and convenient. The current popular idea is the so-called closed-loop processes. After a battery is discarded, the manufacturer will recycle it and re-create it. The battery is re-invested in the market. Although this idea sounds very attractive, as far as I know, there is currently no big battery manufacturer to use it.

The recycling process of waste lithium ion batteries is divided into two processes: wet process and fire process. Industrially, the fire process is relatively mature and widely used, for example, the melting process in the CaO-SiO2-Al2O3 type shaft furnace of Umicore Company. However, from the research situation of the laboratory, the wet method is still the mainstream.

That is. In the embarrassing situation where the people do not complain, it seems that there are many people who can be human. There are demands in this regard and so. People are more powerful and force the country. Establish a sound recycling mechanism. Me too, the dry battery is obviously no longer produced, still in production. What remote control. And so on. My family needs to use a horn. The previous horn used four 5 large batteries, which is the No. 1 battery. There is no electricity in two days, and four batteries that pollute the environment, nowhere else. Later, a rechargeable lithium battery horn appeared in the market can be used for a few months. It is really worry-free.

Have the same problem. The used rechargeable lithium battery can only remain in the garbage. And this type of battery does not have a national mandatory certification. The inside of the fork is a circular lithium battery similar to the charging treasure. The charger is confusing. . . In short, it is not safe.

A dry battery is a voltaic battery that uses a certain absorbent (such as wood chips or gelatin) to make the contents a paste that does not overflow, and a paste-like electrolyte to generate a direct current chemical battery. More than a decade ago, the teacher told us that the mercury contained in the battery is harmful.

However, it was really more than a decade ago. At present, the dry batteries of No. 1, No. 5 and No. 7 sold in the mall have achieved mercury-free. According to the current national waste classification standards, they belong to other garbage. It’s just fine in other trash cans.

The new “National Waste Classification System Implementation Plan” (Guo Ban Fa [2017] No. 26) document issued by the State in 2017 clearly defines the new definition. The following waste batteries are hazardous waste: nickel-cadmium batteries, mercury oxide batteries, lead storage batteries. .

Nickel-cadmium battery - refers to an alkaline storage battery using metal cadmium as a negative electrode active material and nickel hydroxide as a positive electrode active material.

Mercury oxide battery - a primary battery with zinc as the negative electrode, oxidized mercury as the positive electrode, and potassium hydroxide solution as the electrolyte.

Lead storage battery - the electrode is mainly made of lead and its oxide, and the electrolyte is a kind of storage battery of sulfuric acid solution.

In order to facilitate the judgment and release of residents, reduce the error rate, and ensure the maximum collection and disposal of hazardous waste, our county's "Promoting Measures for Domestic Waste Reduction Work (Trial)" has already hidden these special terms when defining the types of waste battery collection. The most simple and easy to use classification: using a dry battery. Therefore, according to the promotion method, you only need to separate the dry batteries into other garbage, and all the remaining batteries are thrown into the hazardous garbage bins.

Basic requirements for waste battery environmental management the discarded mobile phone battery, battery car battery and button battery mentioned in the netizen message belong to lithium ion battery, lead acid battery and primary battery respectively.

Due to the high toxicity of heavy metals such as mercury, cadmium and lead, the Waste Water Pollution Prevention Technology Policy issued by the Ministry of Environmental Protection in 2003 clearly states that waste mercury oxide batteries, waste nickel-cadmium batteries and waste lead-acid batteries are hazardous wastes and should be followed. Management of hazardous waste management regulations and standards according to relevant state regulations, it is forbidden to produce and sell oxidized mercury batteries, and it is forbidden to produce and sell zinc-manganese and alkaline zinc-manganese batteries with mercury content greater than 0.025% of battery quality; from January 1, 2005, production of mercury containing more than 0.0001% will be stopped alkaline zinc-manganese battery. Therefore, at this stage, the waste batteries included in the management of hazardous waste include waste nickel-cadmium batteries and waste lead-acid batteries. For primary batteries, lithium-ion batteries, nickel-metal hydride batteries, etc., because environmental risks are relatively small, they are not included in hazardous waste for management.

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