4.8 Article

Low Molecular Weight Spandex as a Promising Polymeric Binder for LiFePO4 Electrodes

Journal

ADVANCED ENERGY MATERIALS
Volume 7, Issue 8, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201602147

Keywords

adhesion; binder; cohesion; lithium iron phosphate; spandex

Funding

  1. KAIST End-Run Program - Ministry of Science, ICT and Future Planning [N11160057]
  2. Climate Change Research Hub Project of the KAIST EEWS Research Center [N11160014]
  3. R&D program of MSIP/COMPA [2015K000214]
  4. Project of flexible power module and system development for wearable devices - Ministry of Trade, Industry and Energy [10065730]
  5. KAIST Institute for the NanoCentury [N11160073]
  6. KAIST Institute for the NanoCentury
  7. National Research Foundation of Korea [10Z20130011056] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Low molecular weight spandex is reported as a binder of olivine-LiFePO4 cathodes with improved rate and cycling performance. The hard segments of spandex form hydrogen bonding with LiFePO4 and aluminum current collector, enhancing the cohesion and adhesion of the electrode film. Also, the low mole-cular weights require a smaller amount of solvent, saving cost and the environment in manufacturing.

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