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Poly(ether amine) and cross-linked poly(propylene oxide) diacrylate thin-film polymer electrolyte for 3D-microbatteries
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Polymer Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry.
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2010 (English)In: Electrochemistry communications, ISSN 1388-2481, E-ISSN 1873-1902, Vol. 12, no 11, 1498-1500 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a novel thin-film electrolyte of a 2:1 blend of polyetheramine (glyceryl poly(oxypropylene)) and cross-linked oligomeric poly(propylene oxide) diacrylate with LiTFSI. The polyetheramine acts as a surfactant, and can thereby be applied as a conformal coating on complex surfaces-here demonstrated for porous LiFePO4 cathodes-making it useful for 3D-microbatteries. The poly(propylene oxide) diacrylate blends with the surfactant and is easily UV cross-linked, thereby ensuring good mechanical stability. Electrolytes, ∼ 2 μm thick, were casted onto LiFePO 4 cathodes and cycled against metallic lithium, displaying stable discharge capacities of ∼ 8 mAh/g at room temperature and ∼ 120 mAh/g at 60 °C. The electrolyte showed conductivities of 3.45 × 10 - 6 and 5.80 × 10- 5 S cm- 1 at room temperature and 60 °C, respectively.

Place, publisher, year, edition, pages
2010. Vol. 12, no 11, 1498-1500 p.
Keyword [en]
LiFePO4 cathode, Microbattery, Polymer cross-linking, Polymer electrolyte, Surfactant
National Category
Inorganic Chemistry Polymer Chemistry
Research subject
Chemistry with specialization in Inorganic Chemistry; Chemistry with specialization in Polymer Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-138229DOI: 10.1016/j.elecom.2010.08.017ISI: 000284386100011OAI: oai:DiVA.org:uu-138229DiVA: diva2:378954
Available from: 2010-12-16 Created: 2010-12-16 Last updated: 2017-12-11Bibliographically approved

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Tan, SemraHilborn, JönsGustafsson, TorbjörnBrandell, Daniel

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