摘要:
Described herein are acidified metal oxide ("AMO") materials useful in applications such as a battery electrode or photovoltaic component, in which the AMO material is used in conjunction with one or more acidic species. Advantageously, batteries constructed of AMO materials and incorporating acidic species, such as in the electrode or electrolyte components of the battery exhibit improved capacity as compared to a corresponding battery lacking the acidic species.
摘要:
A lithium ion battery cell includes a housing, a cathode disposed within the housing, wherein the cathode comprises a cathode active material, an anode disposed within the housing, wherein the anode comprises an anode active material, and an electrolyte disposed within the housing and in contact with the cathode and anode. The electrolyte includes a solvent mixture and a lithium salt serving as a primary lithium ion conductor in the electrolyte to allow for lithium ion intercalation and deintercalation processes at the cathode and the anode during charging and discharging of the lithium ion battery cell. The solvent mixture includes a cyclic carbonate and one or more non-cyclic carbonates. The lithium salt is lithium bis(fluorosulfonyl)imide (LiFSI). The solvent mixture and LiFSI are configured to enhance the low temperature performance of the lithium ion battery cell at operating temperatures below 0 °C.
摘要:
Provided is a method of manufacturing a nonaqueous electrolyte secondary battery, the method including: constructing a battery assembly by using a positive electrode containing N-methyl-2-pyrrolidone and a nonaqueous electrolytic solution containing an oxalato complex compound. In the method, the battery assembly is constructed such that a following expression of 0.000036≤B 1 /A 1 ≤0.001048 is satisfied, where A 1 (ppm) represents a content of N-methyl-2-pyrrolidone per unit mass of a positive electrode active material layer, and B 1 (mol/kg) represents a content of the oxalato complex compound per unit mass of a negative electrode active material.
摘要:
Provided is a lithium secondary battery for stop-start systems, said battery being capable of being discharged at -30°C and 20 ItA or above, and capable of being charged at 50 ItA or above. The positive electrode material of the lithium secondary battery is obtained by chemically bonding the surface carbon atoms of a conductive carbon material and lithium-containing metal phosphate compound particles, which are obtained by coating the surfaces thereof with an amorphous carbon material. The negative electrode material of the lithium secondary battery contains soft carbon particles and/or graphite particles with a specific surface area of at least 6 m2/g. The mixed electrolyte of the lithium secondary battery contains lithium hexafluorophosphate and lithium bis(fluorosulfonic acid)imide.
摘要:
A lithium ion battery cell includes a housing, a cathode disposed within the housing, wherein the cathode comprises a cathode active material, an anode disposed within the housing, wherein the anode comprises an anode active material, and an electrolyte disposed within the housing and in contact with the cathode and anode. The electrolyte consists essentially of a solvent mixture, a lithium salt in a concentration ranging from approximately 1.0 molar (M) to approximately 1.6 M, and an additive mixture. The solvent mixture includes a cyclic carbonate, an non-cyclic carbonate, and a linear ester. The additive mixture consists essentially of lithium difluoro(oxalato)borate (LiDFOB) in an amount ranging from approximately 0.5 wt% to approximately 2.0 wt% based on the weight of the electrolyte, and vinylene carbonate (VC) in an amount ranging from approximately 0.5 wt% to approximately 2.0 wt% based on the weight of the electrolyte.