Process information
| Key Data Set Information | |
| Location | CN |
| Reference year | 2020 |
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| Use advice for data set | The life cycle assessment data pertaining to the advanced hydrometallurgy process for LFP batteries should be used carefully, considering the unique aspects of the recycling process. The functional unit for this data set is 1 kWh of battery capacity. Users need to ensure that comparisons or assessments are made on a similar basis and scale. Attention should be given to methodological choices, such as the allocation of environmental impacts between the recycled product and the original waste stream. It is important to note that the data come from multiple papers and may contain variability that could affect the outcome of the analysis. |
| Technical purpose of product or process | The advanced hydrometallurgy process described is specifically used for the recovery of materials from waste lithium iron phosphate (LFP) batteries. The end product is battery-grade lithium carbonate, which is a critical raw material for the manufacturing of new lithium iron phosphate batteries, as well as other lithium-based chemical products. |
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| General comment on data set | Before adopting wet process for material recovery, the waste lithium iron phosphate batteries are safely discharged, disassembled, pyrolyzed, mechanically crushed, and sorted to get powdered lithium-containing waste. Lithium-containing material is added to leaching solvent for leaching, filtered and separated to get lithium-containing solution, added to the purification agent for reaction, filtered, concentrated, and under certain reaction conditions, added to the precipitation agent fully reacted to crystallization and precipitation, filtered, washed and dried to get battery-grade lithium carbonate. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Functional Unit | using 1 kWh as the functionalunit |
| Technological representativeness | |
| Technology description including background system | Leaching: During the leaching process, the solid-liquid ratio of the selected electrode materials for smelting and the leaching solution should be controlled within the appropriate range, and should be stirred evenly and reacted adequately.Impurity removal: The impurity removal process should be based on the premise of not introducing excess impurities, combined with precipitation and extraction methods to ensure that the impurity elements are reasonably removed, and reduce the loss of nickel, cobalt, manganese, lithium and other elements.Purification: Should be purified according to the characteristics of metal elements, select the appropriate extractant, under certain extraction conditions, after multiple extraction, to obtain a high-purity target metal solution, such as nickel, cobalt, manganese solution or lithium solution.Material synthesis: Material synthesis is the process of converting metal purification liquid into positive electrode materials, precursors and other battery materials. The products synthesized by the material should meet the national standards or industry standards of the relevant products, nickel diamond lithium manganese oxide should meet the requirements of YS/T798, nickel cobalt manganese hydroxide should meet the requirements of GB/T26300. |
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Modelling and validation
Administrative information
Inputs and Outputs