Evaluation of a cross-linked polyurethane acrylate as polymer electrolyte for lithium batteries

Journal Article · Thu Jun 15 00:00:00 EDT 2006 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2005.12.004· OSTI ID:20895220

Santhosh, P ^[1]; Gopalan, A ^[1]; Vasudevan, T ^[1]; Lee, Kwang-Pill ^[2]

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1. Department of Industrial Chemistry, Alagappa University, Karaikudi 630003 (India)
2. Department of Chemistry Education, Kyungpook National University, Daegu 702-701 (Korea, Republic of)

A cross-linked polyurethane acrylate (CL-PUA) was synthesized by end capping 2,6-toluene diisocyanate (TDI)/poly(ethylene glycol) (PEG) based prepolymer with hydroxybutyl methacrylate (HBMA). Differential scanning calorimetry (DSC) and Fourier transform infra-red (FT-IR) spectroscopy measurements reveal the possible presence of significant interactions between lithium ions and soft/hard segments of the CL-PUA, when CL-PUA was complexed with lithium perchlorate (LiClO{sub 4}). CL-PUA follows the VTF relationship for the ion transport. Predominant formation of contact ion pairs of LiClO{sub 4} has been observed through AC conductivity and DSC measurements. The lithium stripping-plating process is a reversible and implies better electrochemical stability in the working voltage range. Also, CL-PUA electrolyte shows better compatibility with lithium metal as inferred from impedance measurements and has a good cationic transference number suitable to be used as a solid polymer electrolyte. The addition of HBMA into PU matrix improves tensile strength of the CL-PUA. Swelling measurements of CL-PUA with plasticizer showed better dimensional stability. Also, a cell was constructed using CL-PUA as electrolyte and the performance was assessed.

• OSTI ID: 20895220
• Journal Information: Materials Research Bulletin, Vol. 41, Issue 6; Other Information: DOI: 10.1016/j.materresbull.2005.12.004; PII: S0025-5408(05)00446-0; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ACRYLATES
CALORIMETRY
ELECTRIC BATTERIES
ELECTROCHEMISTRY
ELECTROLYTES
FOURIER TRANSFORMATION
INFRARED SPECTRA
IONIC CONDUCTIVITY
LITHIUM IONS
LITHIUM PERCHLORATES
METHACRYLATES
PLASTICIZERS
PLATING
POLYETHYLENE GLYCOLS
POLYURETHANES
TENSILE PROPERTIES
THERMAL GRAVIMETRIC ANALYSIS
TOLUENE