Cited by 124Extraction and Separation ProcessesRecycling and Waste Management TechniquesEnvironmental Impact and Sustainability

The DOI matches its Crossref record; 49 of the 51 references it cites were found in a registry or an index.

Simulation-based life cycle assessment for hydrometallurgical recycling of mixed LIB and NiMH waste

Open access
Rinne, Marja, Elomaa, Heini, Porvali, Antti, Lundström, Mari·2021·Resources Conservation and Recycling

Abstract

The sustainable and competitive recovery of materials from spent batteries is becoming an urgent issue due to the increasing popularity of hybrid and fully electric vehicles. In this present study, flowsheet simulation was combined with life cycle assessment to investigate the environmental impacts of a conceptual, experimentally proven hydrometallurgical battery recycling process, where nickel metal hydride (NiMH) battery waste is used as reductant for lithium-ion battery (LIB) waste, synergistically improving the extraction of valuable metals from both waste types. Various options for sodium circulation in the precipitation of rare earths were considered in different scenarios. The results showed that the main benefit of the process was the reduced consumption of leaching chemicals. Of the investigated sodium management scenarios, crystallization of sodium sulfate was found to be the most environmentally feasible option, allowing the use of Na as a precipitation chemical for rare earth recovery. Significant potential reductions in climate change, acidification, freshwater eutrophication, and human toxicity were also achievable when compared to the life cycle impacts of the primary production of battery metals, mainly due to the high environmental footprint of primary nickel and cobalt sulfate production. Although further improvements to the process were found to be possible, the future availability of waste NiMH batteries may limit the application of the described process concept on an industrial scale.

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Crossref · 10.1016/j.resconrec.2021.105586

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Citations

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Research works printed but not linked: 4

  1. ACEA, 2020, New passenger car registrations by fuel type in the European Union – Quarter 4 2019, European Automobile Manufacturers Association, 10
  2. Directive, 1999, /31/EC of the European Parliament and of the Council of 26 April 1999 on the landfill of waste, 1999, Off. J. L., 182, 0001
  3. Directive, 2006, /66/EC of the European Parliament and of the Council of 6 September 2006 on batteries and accumulators and waste batteries and accumulators and repealing Directive 91/157/EEC, 2006, Offic. J. L., 266, 1
  4. European Commission, 2020. Study on the EU's List of Critical Raw Materials. DOI: 10.2873/11619. · DOI

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Metadata

Authors
Rinne, M., Elomaa, H., Porvali, A., & Lundström, M.
Affiliations
Aalto University (FI)
Corresponding author
Rinne, Marja
Venue
Resources Conservation and Recycling
Publisher
Elsevier BV
Published
2021-07
Volume
170
Pages
105586
ISSN
0921-3449 (ISSN-L)
OpenAlex
W3143555413
Cited by
124
References
51
Citations by year
2026: 22 · 2025: 31 · 2024: 21 · 2023: 22 · 2022: 23 · 2021: 5
FWCI
7.59
Type
journal article
Language
en
Open access
Locations
  • Resources Conservation and Recycling (publishedVersion, cc-by)
  • Aaltodoc (Aalto University) (submittedVersion, cc-by)
Funders
  • Suomen Akatemia
  • Aalto-Yliopisto
Topics
  • Physical Sciences › Materials Science › Metals and Alloys › Extraction and Separation Processes
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Recycling and Waste Management Techniques
  • Physical Sciences › Environmental Science › Environmental Engineering › Environmental Impact and Sustainability
Keywords
lithium-ion battery waste, flowsheet simulation, life cycle assessment, rare earth recovery, sodium sulfate precipitation, nickel recovery, cobalt recovery, electric vehicle batteries

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