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Process Data set: Aluminum electrolytic capacitor production ; Aluminum electrolytic capacitor (25V 100uf) (en) en zh

Key Data Set Information
Location NT-JS-CN
Reference year 2020
Name
Aluminum electrolytic capacitor production ; Aluminum electrolytic capacitor (25V 100uf)
Use advice for data set When utilizing the provided Life Cycle Assessment data for these aluminum electrolytic capacitors, it is important to note that certain specialized treating processes of production waste are excluded. Users should be aware that environmental impacts of 1,4-butyrolactone and other chemicals are underestimated due to the lack of complete LCI data and simplified analysis. This should be considered in the assessment, especially if these substances are of particular environmental concern. Additionally, the potential influence of side reactions and the need for subsequent treatment processes should be acknowledged when evaluating the manufacturing processes and their environmental implications.
Technical purpose of product or process The aluminum electrolytic capacitors (25V 100uf) produced in this industrial process are primarily used in electronic circuits for energy storage and filtering. These capacitors are essential components in a wide range of electronic devices, including power supplies, consumer electronics, and automotive electronics due to their ability to withstand high voltages and large capacitance values.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Materials production / Metals and semimetals
General comment on data set The aluminum electrolytic capacitors (25V 100uf) produced in this industrial process are primarily used in electronic circuits for energy storage and filtering. These capacitors are essential components in a wide range of electronic devices, including power supplies, consumer electronics, and automotive electronics due to their ability to withstand high voltages and large capacitance values.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Time representativeness
Time representativeness description Data from research conducted in 2020
Technological representativeness
Flow diagram(s) or picture(s)
  • JHAmbyQwQoxdAXxEj9GctjhMnnb.png Image
LCI method and allocation
Type of data set Unit process, black box
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 foreground data are from an AECs’ manufacturer and its supplier. The data about the product family and manufacturing processes of capacitor fabrication are from the AECs’ manufacturer in Nantong, Jiangsu, China. The reference year of capacitor fabrication is 2021. Furthermore, through the investigation of the manufacturer’s upstream supplier, the original data of manufacturing processes of blank foil fabrication (anode and cathode), formed foil fabrication, and cathode etched foil fabrication are obtained. The reference year of blank foil fabrication, formed foil fabrication, and cathode etched foil fabrication is 2020. The background data of the substance flows (i.e., aluminum ingots, separator paper, electricity, water) from the primary industries are acquired from the Gabi software (version 10.0.0.71). The LCI data about specialized treating processes of production waste, including capacitors (waste), aluminum scraps, paper scraps, and sludge, are ignored. In the electrolyte, the complete composition of the electrolyte is 69% main solvent (1,4-butyrolactone), 26% auxiliary solvent (ammonium tetramethyl succinate), and 5% solute (water). The electrolyte here is assumed to consist of 95% of the main solvent and 5% solutes to simplify the analysis of environmental impacts due to the missing LCI data. The inaccessible LCI data about 1,4-butyrolactone, ammonium citrate, ammonium pentaborate, NH4H2PO4, and HBO3 are estimated according to chemical equations of the existing substance flows (reactants) in Gabi software. This will underestimate the environmental impact of these substances in actual industrial production to a certain extent. Besides, many chemical reactions need to satisfy various reaction conditions such as pressure, temperature, and catalyst, which will lead to the extra input of energy and raw materials and increase the risk of environmental pollution. If there are side reactions for the desired chemical reaction, it will not only affect the yield of the targeted product of the reaction but also need a suitable subsequent treatment process to separate and purify the product. Due to the limited consumption of these five materials, their influence on the final assessment result is not significant.
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) 2024-01-10T09:14:45+08:00
Publication and ownership
UUID 1c235e8c-3a1c-4b6c-9221-5db6f3b743d8
Date of last revision 2024-04-20T15:31:36.502103+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=1c235e8c-3a1c-4b6c-9221-5db6f3b743d8&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 Energy carriers and technologies / Electricity 1266.48 MJ1266.48 MJ
Product flow
Materials production / Metals and semimetals 7.22 kg7.22 kg
General comment Al ingots (anode) ; Al smelting preparation (anode)
Product flow
Materials production / Metals and semimetals 4.77 kg4.77 kg
General comment Al ingots (cathode)
Product flow
Systems / Packaging 69.75 kg69.75 kg
General comment case from assembly (including sleeving)
2.8 2.8
General comment Lead from assembly (including sleeving)
Product flow
Materials production / Inorganic chemicals 6.11 kg6.11 kg
General comment Sealing cover from assembly (including sleeving)
Product flow
Systems / Textiles, furnitures and other interiors 4.23 kg4.23 kg
General comment sleeve from assembly (including sleeving)
Product flow
Materials production / Metals and semimetals 2.8 kg2.8 kg
General comment tab from winding ; 绕组接线片
Product flow
Materials production / Plastics 0.47 kg0.47 kg
General comment tape from winding
Product flow
Materials production / Paper and cardboards 4.49 kg4.49 kg
General comment Separator paper coil
Product flow
Materials production / Water 1880.57 kg1880.57 kg
General comment deionized water
Product flow
Materials production / Other mineralic materials 1043.35 kg1043.35 kg
General comment tape water
Product flow
Materials production / Inorganic chemicals 13.59 kg13.59 kg
General comment Electrolyte (soak); The complete composition of electrolyte is 69% main solvent (1,4-butyrolactone), 26% auxiliary solvent (ammonium tetramethylsuccinate), and 5% solute (water). The electrolyte here is assumed to consist of 95% the main solvent and 5% solutes to simplify the analysis of environmental impacts.
Product flow Materials production / Inorganic chemicals 1.95 m31.95 m3
Product flow
Emissions / Inorganic covalent compounds 0.35 kg0.35 kg
General comment perboric acid; HBO3; 过硼酸
Product flow
Materials production / Inorganic chemicals 3.0 kg3.0 kg
General comment HCl (31%)
0.01 0.01
General comment N2 gas (final annealing)
Product flow
Materials production / Inorganic chemicals 3.37 kg3.37 kg
General comment NaOH (30%)
Product flow
Materials production / Inorganic chemicals 0.03 kg0.03 kg
General comment 硝酸氢铵; 硝酸铵;NH4NO3
Product flow
Materials production / Inorganic chemicals 0.9 kg0.9 kg
General comment HNO3 (98%)
Product flow
Materials production / Organic chemicals 0.3 kg0.3 kg
General comment rolling oil (cold rolling)
Product flow
Materials production / Inorganic chemicals 0.68 m30.68 m3
General comment Ammonium citrate (formation process); 柠檬酸铵
Product flow
Emissions / Inorganic covalent compounds 0.19 kg0.19 kg
General comment Ammonium pentaborate (formation process); 五硼酸铵
0.002 0.002
General comment Ar gas (Al smelting preparation)

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
Emissions / Inorganic covalent compounds 0.25 kg0.25 kg
General comment Aluminium phosphate (AlPO4) (production of anode formed foil); The environmental impacts from the production stage are all allocated to the capacitors. The by-product AlPO4 in production of anode formed foil is taken as an economical treatment method to address the production waste because of the limited amount and the simplified analysis.
Product flow
Materials production / Metals and semimetals 0.73 m30.73 m3
General comment Al scraps; The environmental impacts on the specialized recycling processing of the flows are ignored.
0.029 0.029
General comment Scraps of separator paper; The environmental impacts on the specialized recycling processing of the flows are ignored.
0.236 0.236
General comment sludge (Sewage treatment); The environmental impacts on the specialized landfill of the sludge are ignored.
1617.84 1617.84
General comment wastewater
Product flow
Emissions / Other substance type 0.001 kg0.001 kg
General comment total phosphorous (TP) (production of anode formed foil); 总磷 (污染物);
0.003 0.003
General comment total nitrogen (TN); 总氮 (污染物)
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 0.025 kg0.025 kg
Elementary flow Emissions / Emissions to water / Emissions to water, unspecified 0.072 kg0.072 kg
0.01 0.01
General comment Biochemical Oxygen Demand (BOD) (Production of Al blank foil); 生化需氧量 (水体污染物)
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.007 kg0.007 kg
General comment Ammonia nitrogen (NH3-N)
Product flow
Emissions / Other substance type 0.004 kg0.004 kg
General comment dust (Al smelting preparation)
0.015 0.015
0.002 0.002
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 0.002 kg0.002 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 0.002 kg0.002 kg
Product flow
Materials production / Metals and semimetals 10000.0 kg10000.0 kg
General comment aluminum electrolytic capacitors (qualified) (10000 pcs)
6281.67 6281.67
General comment aluminum electrolytic capacitors (waste) ; The environmental impacts on the specialized recycling processing of the flows are ignored.