Abstract: The present disclosure relates generally to the field of lithium ion batteries and battery modules. More specifically, the present disclosure relates to lithium ion batteries that use lithium titanate oxide (LTO) as the anode active material. A battery module includes a lithium ion battery cell including an anode having an active layer. The active layer includes a secondary lithium titanate oxide (LTO) having an average particle size (D50) greater than 2 micrometers (?m).

Abstract: The present disclosure relates generally to the field of lithium ion batteries and battery modules. More specifically, the present disclosure relates to a battery module including a lithium ion battery cell having a cathode with a cathode active layer and an anode with an anode active layer. The anode active layer includes at least one polyvinylidene fluoride (PVDF) binder, a conductive carbon, and a secondary lithium titanate oxide (LTO), wherein the secondary LTO includes secondary LTO particles having an average particle size (D50) greater than 2 micrometers (?m).

Abstract: 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.

Abstract: 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.

Abstract: The present disclosure relates to micro-hybrid battery modules that include at least one battery cell having a titanate-based oxide anode active material with spinel structure and a high voltage spinel (LiMn2-xMxO4) cathode active material. The battery module may be configured to couple to an energy storage unit to enable the module to be used in start-stop applications.

Abstract: A method of making a positive electrode includes forming a slurry of particles using an electrode formulation, a diluent, and oxalic acid, coating the slurry on a collector and drying the coating on the collector to form the positive electrode. The electrode formulation includes an electrode active material, a conductive carbon source, an organic polymeric binder, and a water soluble polymer. The diluent consists essentially of water.

Abstract: A battery system may include a plurality of battery cell assemblies electrically coupled in series. A first battery cell assembly of the plurality of battery cell assemblies includes a first lithium ion battery cell and a first lead acid battery cell electrically coupled in parallel with the first lithium ion battery cell such that the first lead acid battery cell is configured to resist overcharging and overdischarging of the first lithium ion battery cell.

Abstract: In one embodiment, a positive electrode is formed by a process that includes forming a slurry including particles dispersed within a liquid from a electrode formulation and the liquid such that the particles have a particle size distribution D50 of 15 microns or less, coating the slurry on a collector; and drying the coated collector to form the positive electrode. The electrode formulation includes an electrode active material, a conductive carbon source, an organic polymeric binder, and a water-soluble polymer. The liquid consists essentially of water or a mixture of water and an alcohol. When the liquid consists essentially of the mixture, the alcohol is present in an amount of less than 10% by weight, based on the weight of the slurry. When the liquid consists essentially of water, the slurry is formed from the electrode formulation, the liquid, and an arene-capped polyoxoethylene surfactant.