Interfacial stability and electrochemical behavior of Li/LiFePO4 batteries using novel soft and weakly adhesive photo-ionogel electrolytes

Patternable, Solution-Processed Ionogels for Thin-Film Lithium-Ion Electrolytes

“…Nonetheless, reasonable performance was reported; Aidoud et al carried out UV crosslinking of an acrylic-based ionogel and achieved capacities of 130 mAh/g at a rate of C/5. 24 Lee et al had similar results using a polyethylene glycol matrix (Boron-PEGDMA), achieving capacities for LFP cells of around 140 mAh/g at C/20. 48 Our electrochemical studies on gel 2 are apparently the first ones for a UV crosslinked inorganic matrix.…”

“…22,23 Previous publications have also shown that an organic matrix ionogel can be formed through UV polymerization. 24,25 Here we report two important capabilities offered by ionogels. In one case, we demonstrate the synthesis of high-quality Li + -conducting ionogel thin films of <1 mm, substantially thinner than reported in previous work.…”

In situpolymerization process: an essential design tool for lithium polymer batteries

“…The term ionogel PE (IGPE) is also often used to consider it as a separate class of PE. 268,269 The major issues with the IGPE systems are their high cost, low purity, and low T Li + value, and such problem must be addressed to implement these systems for commercial applications. Even the polymeric ionic liquids (PILs) acting as a host and salt in GPEs and SPEs are also finding attraction among researchers.…”

“…In another work from a different group, using a similar approach, cross-linked IGPE is prepared from a combination of tri-and di-acrylate cross-linkers, and a RTIL/lithium salt mixture (Pyr 13 -TFSI/1M LiTFSI) in the presence of HMPP. 269 It is observed that the RT ionic conductivity is maximum for the IGPE derived from the short-chain cross-linkers ETPTA and 1,6-hexanediol diacrylate (HDDA) (1.1 mS cm -1 ). The in situ processed LMPB cell (LFP|IGPE|Li) exhibited a specific capacity of 120 mAh g -1 (0.2C and 20 o C), and stable over 50 cycles.…”

Flexible Organic–Inorganic Hybrid Solid Electrolytes Formed via Thiol–Acrylate Photopolymerization

“…Toward this end, building cross-linking framework as the electrolyte matrix is regarded to be promising for practical applications. − The cross-linked polymer electrolytes exhibit fully amorphous features which promote ionic conductivity, and the mechanical strength of electrolytes is also elevated as the result of the tight network. Flexibility is the intrinsic feature of soft polymer materials, which can be improved owing to the ideal combination of plasticity and rigidity of the cross-linked system, simultaneously. − Moreover, doping inorganic components in polymer matrices to fabricate hybrid solid electrolytes (HSEs) is an efficient route to promote the physical/chemical performance of electrolytes further. Weston and co-workers added inert fillers, such as α-alumina, to the polymer matrix, and the mechanical characteristics were thus improved.…”