Lithium battery recycling business

The sales of power batteries benefited from the prosperity of the new energy vehicle industry, and the scale of installed capacity continued to rise. New energy vehicles are driven by power batteries. Under the trend of improving the prosperity of the new energy vehicle industry, the installed capacity of power batteries will also show a high growth rate. From a structural point of view, ternary material batteries and lithium iron phosphate batteries are the mainstream of installed capacity, and the installed capacity has continued to increase in recent years.

The power battery recycling policy has been released frequently, industry standards have been continuously introduced, and the degree of standardization has continued to improve, providing a guarantee for the release of market space in the industry. We divide the power battery recycling business into three stages:

1. Echelon utilization;

2. More clear and targeted recycling;

3. Traceability management makes the lithium battery recycling business more standardized, and it also tends to be large-scale.

With the continuous updating and upgrading of lithium battery recycling technology, in recent years, the requirements for the recycling rate of scrapped lithium batteries have gradually become stricter. So far, relatively perfect recovery rate regulations have been formed. Among them, the metal recovery rate of nickel, cobalt and manganese elements is required to reach 98%. , the recovery rate of lithium is also required to be no less than 85%, and the comprehensive recovery rate of other major valuable metals such as rare earth is no less than 97%. At the same time, there are also requirements for other materials and the recycling rate of waste water.

Lithium and cobalt are both relatively scarce non-renewable resources. As important constituent materials of lithium batteries, the recycling and reuse of lithium batteries is not only for environmental protection purposes, but also can save resources and improve their utilization. And create objective economic effects.

Ternary material batteries and lithium iron phosphate batteries are the mainstream in the industry, and ternary batteries are more economical to recycle because of their higher metal content. In terms of secondary batteries, compared with lead-acid batteries and nickel-chromium batteries, the environmental pollution is relatively large and the cycle life is short. Ni-MH batteries have large volume and weight and self-discharge. Lithium batteries have small volume and weight, long cycle life and low environmental pollution. and other advantages, among which ternary lithium battery and lithium iron phosphate are the mainstream varieties. From the perspective of battery recycling, ternary batteries have higher nickel-cobalt content and stronger recycling economy, while lithium iron phosphate batteries are still mainly recycled in the form of cascade utilization, and there is a phenomenon that directly enters the recycling stage. trend.

Lithium iron phosphate batteries are carried out through cascade utilization and recycling. With the use of power batteries, the electrolyte and active materials are gradually consumed, and lithium dendrites are easily formed, and the capacity is gradually reduced. For the power lithium battery pack, when the capacity of some of the cells decays so fast that the capacity of the part of the cells is too low, the battery power will not be able to output stably, which may easily lead to safety problems. Generally speaking, according to the decay of the battery cells, when the capacity of the power battery decays below 80%, it needs to be withdrawn from use and enter the recycling period. When the capacity of lithium iron phosphate battery is reduced to 20% to 80%, it is lightly scrapped, and it can enter the stage of cascade utilization for energy storage, communication base stations and the user side; when it is below 20%, it is severely scrapped and will enter the stage of recycling. In the future, under the trend of directly entering the recycling stage, when the capacity of the lithium iron phosphate battery drops below 80%, the proportion directly entering the recycling stage may continue to increase.

The lithium battery crushing and recycling equipment separates the waste lithium battery into the raw materials we need by separating and regenerating the waste lithium battery. The separation process is carried out, and there is a pulse dust removal facility to collect the dust generated during the separation process and subsequent processes. Forming a green, high-quality closed-circuit cycle system for the entire life cycle of the battery, the lithium battery crushing and recycling equipment mainly uses the aluminum moiety, copper mooring and positive and negative electrode materials in the positive and negative plates of the scrapped lithium battery to separate and process for recycling. The development environment of the industry is optimized, and the development prospect of lithium battery resource utilization is considerable.