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Designing Polyureth...
Designing Polyurethane Solid Polymer Electrolytes for High-Temperature Lithium Metal Batteries
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- Andersson, Rassmus (author)
- Uppsala universitet,Strukturkemi
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- Hernández, Guiomar (author)
- Uppsala universitet,Strukturkemi
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- See, Jennifer (author)
- Brewer Sci, Rolla, MO 65401 USA.
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- Flaim, Tony D. (author)
- Brewer Sci, Rolla, MO 65401 USA.
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- Brandell, Daniel, 1975- (author)
- Uppsala universitet,Strukturkemi
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- Mindemark, Jonas (author)
- Uppsala universitet,Strukturkemi
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(creator_code:org_t)
- 2022-01-10
- 2022
- English.
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In: ACS Applied Energy Materials. - : American Chemical Society (ACS). - 2574-0962. ; 5:1, s. 407-418
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Abstract
Subject headings
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- Potentially high-performance lithium metal cells in extreme high-temperature electrochemical environments is a challenging but attractive battery concept that requires stable and robust electrolytes to avoid severely limiting lifetimes of the cells. Here, the properties of tailored polyester and polycarbonate diols as the soft segments in polyurethanes are investigated and electrochemically evaluated for use as solid polymer electrolytes in lithium metal batteries. The polyurethanes demonstrate high mechanical stability against deformation at low flow rates and moreover at temperatures up above 100 degrees C, enabled by the hard urethane segments. The results further indicate transferrable ion transport properties of the pure polymers when incorporated as the soft segments in the polyurethanes, offering designing opportunities of the polyurethane by tuning the soft segment ratio and composition. Long-term electrochemical cycling of polyurethane-containing cells in lithium metal batteries at 80 degrees C proves the stability at elevated temperatures as well as the compatibility with lithium metal with stable cycling maintained after 2000 cycles.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Keyword
- polymer electrolytes
- high-temperature batteries
- polyurethane
- lithium metal batteries
- long-term cycling
Publication and Content Type
- ref (subject category)
- art (subject category)
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