Journal
ADVANCED MATERIALS
Volume 31, Issue 20, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201804909
Keywords
energy storage; gel polymer electrolytes; in situ gelation; lithium-sulfur batteries; lithium-ion batteries
Categories
Funding
- MOTIE (Regional (KIAT)) [R0006515]
- NRF [2017M1A2A2087813]
- KCRC [2014M1A8A1049296]
- MOE (BK21Plus), Korea [10Z20130011057]
- Korea Technology & Information Promotion Agency for SMEs (TIPA) [R0006515] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2017M1A2A2087813] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
A gel polymer electrolyte (GPE) is a liquid electrolyte (LE) entrapped by a small amount of polymer network less than several wt%, which is characterized by properties between those of liquid and solid electrolytes in terms of the ionic conductivity and physical phase. Electrolyte leakage and flammability, demerits of liquid electrolytes, can be mitigated by using GPEs in electro-chemical cells. However, the contact problems between GPEs and porous electrodes are challenging because it is difficult to incorporate GPEs into the pores and voids of electrodes. Herein, the focus is on GPEs that are gelated in situ within cells instead of covering comprehensive studies of GPEs. A mixture of LE and monomer or polymer in a liquid phase is introduced into a pre-assembled cell without electrolyte, followed by thermal gelation based on physical gelation, monomer polymerization, or polymer cross-linking. Therefore, GPEs are formed omnipresent in cells, covering the pores of electrode material particles, and even the pores of separators. As a result, different from ex situ formed GPEs, the in situ GPEs have no electrode/electrolyte contact problems. Functional GPEs are introduced as a more advanced form of GPEs, improving lithium-ion transference number or capturing transition metals released from electrode materials.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available