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Process Data set: End-of-life LFP batteryExisting hydrometallurgy process (en) en zh

Key Data Set Information
Location CN
Reference year 2018
Name
End-of-life LFP batteryExisting hydrometallurgy process
Use advice for data set When using this LFP battery hydrometallurgy dataset, users should account for the variation in metal recovery rates due to different conditions and technologies cited in multiple papers. The dataset's functional unit is 1 kWh, which requires users to adjust their calculations based on the capacity of the batteries studied. Users must consider the technological applicability of the data, specifically related to the efficiency and purity of the recovered materials, to ensure its relevance for their specific recycling processes or life cycle assessments.
Technical purpose of product or process The hydrometallurgical process described is utilized for the recovery and recycling of valuable metals from end-of-life (EoL) lithium iron phosphate (LFP) batteries. It involves disassembly, crushing of spent batteries, extraction of metals via leaching in an acid-base solution, followed by purification processes to obtain high-purity lithium iron phosphate (LiFePO4). This recycled LiFePO4 can be used as a cathode material for the manufacturing of new lithium-ion batteries.
Classification
Class name : Hierarchy level
  • ILCD: End-of-life treatment / Material recycling
General comment on data set First, the EoL LFP batteries were disassembled and crushed. The processed battery material was then dissolved in an acid-base solution to extract some of the valuable metal elements. Finally, decontamination and purification were performed to obtain LiFePO4.
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 The waste LFP that have been identified as containing iron and lithium need to be discharged first, dried naturally, and then heat treated to remove the diaphragm, electrolyte, binder, etc., and then separated copper and aluminum by multi-stage crushing. For steel shell batteries or soft pack batteries, stainless steel or aluminum-plastic films, diaphragms, etc. The remaining positive and negative electrode materials are extracted by leaching, precipitation, impurity removal, extraction and purification to obtain lithium carbonate, lithium phosphate, lithium chloride, etc. The iron and phosphorus slag and carbon slag produced in the process are recovered as by-products. Recycled lithium carbonate, lithium phosphate, lithium chloride and lithium hydroxide are used as raw materials for lithium battery production, and by-product iron phosphorus residue can be synthesized again into iron phosphate products, or recycled to obtain iron hydroxide and phosphoric acid raw materials.
Flow diagram(s) or picture(s)
  • DGbUbX2m9o57qWxByePczn1inYb.png Image
LCI method and allocation
Type of data set Unit process, single operation
Deviation from LCI method principle / explanations None
Deviation from modelling constants / explanations None
Data sources, treatment and representativeness
Deviation from data cut-off and completeness principles / explanations None
Data selection and combination principles The data come from multiple papers and are difficult to distinguish.
Deviation from data selection and combination principles / explanations None
Deviation from data treatment and extrapolations principles / explanations None
Data source(s) used for this data set
Completeness
Completeness of product model No statement
Validation
Type of review
Dependent internal review
Reviewer name and institution
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2024-04-11T15:54:21+08:00
Publication and ownership
UUID 8d8cfd57-7be0-4c12-96ad-07fff1911ddd
Date of last revision 2024-05-13T14:55:56.617676+08:00
Data set version 01.00.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=8d8cfd57-7be0-4c12-96ad-07fff1911ddd&version=01.00.000&stock=TianGong
Owner of data set
Copyright No
License type Free of charge for all users and uses

Inputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
Materials production / Inorganic chemicals 0.23 kg0.23 kg
General comment Lithium carbonate, production mix/CN
Product flow
Wastes / Production residues 9.54 kg9.54 kg
General comment Sulphuric acid, production mix/EU-28
Product flow
Materials production / Inorganic chemicals 5.79 kg5.79 kg
General comment Sodium hydroxide, production mix/EU-28
Product flow
Materials production / Inorganic chemicals 3.25 kg3.25 kg
General comment Hydrogen peroxide
Product flow Energy carriers and technologies / Electricity 11.8 MJ11.8 MJ
Product flow Materials production / Other mineralic materials 6.24 kg6.24 kg
Product flow End-of-life treatment / Material recycling 3.6 kg3.6 kg

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 0.18 kg0.18 kg
Elementary flow Resources / Resources from ground / Non-renewable element resources from ground 0.14 kg0.14 kg
Elementary flow Resources / Resources from ground / Non-renewable element resources from ground 0.038 kg0.038 kg
Product flow Materials production / Inorganic chemicals 2.58 kg2.58 kg