Abstract: A charging evaluation method based on states of health of batteries comprises: providing one or more batteries in multiple types of states of health; charging one or more batteries by multiple types of charging methods; acquiring multiple types of battery parameters of the one or more batteries during the charging process; forming a radar chart corresponding to a single type of state of health based on the multiple types of battery parameters; calculating and comparing area proportions of the multiple types of charging methods on the radar chart; and determining the one with the highest area proportion among multiple types of charging methods to be the charging method applicable to an interval of state of health.

Abstract: An electrolyte composition and a metal-ion battery employing the same are provided. The electrolyte composition includes a metal salt of Formula (I), an ionic liquid, and an additive MiXj??Formula (I), wherein M can be lithium ion, sodium ion, potassium ion, beryllium ion, magnesium ion, calcium ion, scandium ion, yttrium ion, titanium ion, zirconium ion, hafnium ion, vanadium ion, niobium ion, tantalum ion, chromium ion, molybdenum ion, tungsten ion, manganese ion, technetium ion, rhenium ion, iron ion, ruthenium, osmium ion, cobalt ion, rhodium ion, iridium ion, nickel ion, palladium ion, platinum ion, copper ion, silver ion, gold ion, zinc ion, cadmium ion, mercuric ion, indium ion, thallium ion, tin ion, lead ions, arsenic ions, antimony ions, bismuth ion, gallium ion, or aluminum ion; X? can be F?, Cl?, Br?, I?, BF4, PF6?, [(CF3SO2)2N]?, CF3SO3?, NO3?, CH3CO2?, SO42?, C2O42?, or [B(C2O4)2]?; and i is 1, 2, 3, 4, 5, or 6; and j is 1, 2, 3, 4, 5, or 6.

Abstract: An electrolyte composition and a metal-ion battery employing the same are provided. The electrolyte composition includes a metal chloride, an imidazolium salt of Formula (I), an alkali halide, and an oxalate-containing borate wherein R1, R2, and R3 are independently C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, C1-8 alkoxy, C2-8 alkoxyalkyl, or C1-8 fluoroalkyl; and X? is F?, Cl?, Br?, or I?. The metal chloride is aluminum chloride, iron chloride, zinc chloride, copper chloride, manganese chloride, chromium chloride, or a combination thereof.

Abstract: A method for charging aluminum batteries includes performing a first charging procedure for the aluminum battery until the voltage of the aluminum battery reaches a set value. The first charging procedure at least includes a first constant-current charging using a first constant current to charge an aluminum battery in a first stage. The range of the first constant current is from 5 C to 100 C, and C (C-rate) refers to a unit of the capacity of the aluminum battery. When the voltage of the aluminum battery reaches the set value, a first constant-voltage charging uses a first constant voltage to charge the aluminum battery. According to the charging current provided by the first constant voltage to the aluminum battery or the charge time for the aluminum battery charged by the first constant voltage, a determination is made to stop the charging process on the aluminum battery.

Abstract: An electrolyte composition and a metal-ion battery employing the same are provided. The electrolyte composition includes a metal salt of Formula (I), an ionic liquid, and an additive MiXj??Formula (I), wherein M can be lithium ion, sodium ion, potassium ion, beryllium ion, magnesium ion, calcium ion, scandium ion, yttrium ion, titanium ion, zirconium ion, hafnium ion, vanadium ion, niobium ion, tantalum ion, chromium ion, molybdenum ion, tungsten ion, manganese ion, technetium ion, rhenium ion, iron ion, ruthenium, osmium ion, cobalt ion, rhodium ion, iridium ion, nickel ion, palladium ion, platinum ion, copper ion, silver ion, gold ion, zinc ion, cadmium ion, mercuric ion, indium ion, thallium ion, tin ion, lead ions, arsenic ions, antimony ions, bismuth ion, gallium ion, or aluminum ion; X? can be F?, Cl?, Br?, I?, BF4, PF6?, [(CF3SO2)2N]?, CF3SO3?, NO3?, CH3CO2?, SO42?, C2O42?, or [B(C2O4)2]?; and i is 1, 2, 3, 4, 5, or 6; and j is 1, 2, 3, 4, 5, or 6.

Abstract: A method for charging aluminum batteries includes performing a first charging procedure for the aluminum battery until the voltage of the aluminum battery reaches a set value. The first charging procedure at least includes a first constant-current charging using a first constant current to charge an aluminum battery in a first stage. The range of the first constant current is from 5 C to 100 C, and C (C-rate) refers to a unit of the capacity of the aluminum battery. When the voltage of the aluminum battery reaches the set value, a first constant-voltage charging uses a first constant voltage to charge the aluminum battery. According to the charging current provided by the first constant voltage to the aluminum battery or the charge time for the aluminum battery charged by the first constant voltage, a determination is made to stop the charging process on the aluminum battery.

Abstract: An electrolyte composition and a metal-ion battery employing the same are provided. The electrolyte composition includes a metal chloride, an imidazolium salt of Formula (I), an alkali halide, and an oxalate-containing borate wherein R1, R2, and R3 are independently C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, C1-8 alkoxy, C2-8 alkoxyalkyl, or C1-8 fluoroalkyl; and X? is F?, Cl?, Br?, or I?. The metal chloride is aluminum chloride, iron chloride, zinc chloride, copper chloride, manganese chloride, chromium chloride, or a combination thereof.