High-stable nonflammable electrolyte regulated by coordination-number rule for all-climate and safer lithium-ion batteries

Correlating the Solvating Power of Solvents with the Strength of Ion‐Dipole Interaction in Electrolytes of Lithium‐ion Batteries

“…For example, in PC‐based electrolytes, DEC effectively induces anions into the solvation sheath of Li + to form an AI‐ISC structure and enhance the anodic tolerance of PC [42] . Similarly, methyl (2,2,2‐trifluoroethyl) carbonate (FEMC) with low permittivity and weak solvating power increases the amount of $${{{\rm { PF}}}_{{\rm { 6}}}^{{\rm { -}}}}$$ involved in the solvation structure in TFEP electrolytes [43] . Furthermore, based on the proposed mechanism, a series of LiClO 4 −DMF−M electrolytes (M is PC, DMC, DEC, EMC) were designed to enhance the stability of DMF.…”

“…[42] Similarly, methyl (2,2,2-trifluoroethyl) carbonate (FEMC) with low permittivity and weak solvating power increases the amount of PF À 6 involved in the solvation structure in TFEP electrolytes. [43] Furthermore, based on the proposed mechanism, a series of LiClO 4 À DMFÀ M electrolytes (M is PC, DMC, DEC, EMC) were designed to enhance the stability of DMF. The results of MD simulations in Figure S5 proved that the introduction of solvent with weak solvating power will induce more anions to enter the solvation sheath.…”

Ethylene Carbonate Regulated Solvation of Triethyl Phosphate to Enable High-Conductivity, Nonflammable, and Graphite Compatible Electrolyte

“…The observed resilience aligns with documented findings. 5,31 In summary, the binding energy of Li + −solvent unlocks the mystery of competitive coordination chemistry of TEP and EC to Li + . Furthermore, the critical coordination number of TEP in PSS is revealed by NMR, Raman spectroscopy, and theoretical calculations to construct nonflammable electrolytes with high compatibility with Gr electrodes.…”

“…The outstanding cycling performance and cost-effectiveness of advanced lithium-ion batteries (LIBs) have solidified their position as indispensable devices for consumer electronics, electric vehicles, and grid-scale energy storage. − However, frequent LIB safety incidents relating to flammable carbonate-based electrolytes raise significant concerns and obstacles for its further expansion. − Utilizing nonflammable electrolytes is a promising option for inhibiting these risks. − …”

Identifying the Synergistic Na+/Zn2+ Co-Intercalation Mechanism for Boosting Electrochemical Performance of Na4Fe3(PO4)2P2O7 in Zn-Ion Batteries

“…Exploiting renewable energy technologies to minimize the dependency on fossil fuels and reduce the derivative environmental issues is a highly desired practicable way to establish low carbon economy and systems. Whereas the representative clean energy resources, solar and wind, cannot be directly integrated into grid owing to their mutability and intermittence. , The electrochemical energy storage systems (EESs) can act as a bridge to connect these abundant energy resources to inflexible power grids, thus attracting considerable interests over the past decades. , The reliability and large-scale operation of the EESs puts forward stringent requirements on the cost and safety of the battery, apparently the worldwide used lithium-ion batteries (LIBs) cannot meet these demands as a result of the rapid increase in the price of lithium salt and the frequent fire accidents of late. − In this context, safer and cheaper aqueous batteries have become a competitive battery technology toward large scale EES applications …”