What is the power battery cycle

Since last year, capital flooded in the lithium battery the dismantling and recycling process. This is mainly because as the battery demand is more and bigger, the press GWH to estimate the capacity of the rose, Lithium electricity pool requirements related to the stability of the metal raw material supply in the test, on the one hand, is party began to assess the scarcity of resources, resources have similar Dr. Congo cobalt as a strategic resource, and collect relevant tax, mineral traders began to put a lot of material in the second as investments, exist the transaction attribute. So from the recycling, repeated use of the resources is on the agenda, the consideration of its core point has the following considerations:

1) in the process of the whole battery production, due to the production process the process of waste (waste ternary cathode material) to deal with

2) in the process of production, to produce batteries after passing the test, generally can be divided into class A and class B and class C batteries, the defect of class C often require a return for processing

3) in the battery available in the market, to a certain life after the use of recycling, mainly is for material gain

The first part of the lithium battery production process and waste valuable

Lithium-ion battery batteries process technology is generally included negative ingredients, mixing homogenate, coating, drying, and press, slicing, winding, packing, add fluid, encapsulation, and batteries testing. Solid waste in the process of project production mainly for residue slurry is negative agitation tank cleaning, waste leftover material, unqualified battery products.

From this process, we can see, mainly in the stirring, tablet and liquid injection and test & packing phase:

(1) residue slurry: this is the cleaning is produced in the residue slurry mixing tank, usually quantity is about 0.2 t/a, mainly contain three yuan materials, carbon black, graphite, SBR, CMC and mixing raw material. Because this part have differences in every enterprise process automation equipment, each residue slurry is different

(2) the waste scrap: tablet and tailoring stage, the quantity is about 2.65 t/a, mainly contain the cutting was produced by aluminum foil, aluminum, copper foil, nickel, and waste is the cathode piece of metal scrap. This part is the enterprise key processing object. As the anode material price situation, for the moment the ternary positive leftover material (nickel cobalt manganese acid lithium) is the most valuable part of battery enterprises in three yuan positive plate production, slicing process of waste material, or uneven coating, created burrs of three yuan positive plate waste, its main is three yuan nickel cobalt manganese acid lithium anode material, binder, conductive agent (acetylene black) and the basal material of aluminum foil.

(3) the unqualified battery products, production of about 1.2 t/a, divided into before, during and after the fluid injection by high voltage test down after the nonconforming and back into batteries testing, for complete batteries with reference to "the national hazardous waste list", is a hazardous waste (HW49 other waste, not specific industry 900-044-49), the need for centralized treatment.

The yield of lithium-ion batteries has been raised, but in the whole process of a large number of production, more waste is really the first for the object.

The second part of the lithium battery scrap processing

The current dismantling, mainly around the waste lithium-ion batteries and three yuan positive leftover material as raw materials, recovery of nickel, cobalt, manganese, lithium metal resources, such as the preparation of ternary precursor, lithium carbonate, in the moment when prices are high, the anode materials for the whole life cycle of battery material used is more valuable.

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