Abstract: A lithium manganese iron phosphate (LMFP)-based vehicle battery cell is provided. The vehicle battery cell includes a cathode current collector, a cathode disposed on a surface of the cathode current collector, an anode current collector, and an anode disposed on a surface of the anode current collector. The cathode has an active material including at least one of lithium manganese iron phosphate (LMFP) or lithium nickel cobalt manganese aluminum oxide (NCMA). The anode has an active material including graphite. The anode current collector and the anode are disposed proximate to the cathode current collector and the cathode, and the anode and the cathode are separated by a separator.

Abstract: An electrolyte for a battery cell, a battery cell for a vehicle, and a method of forming an electrolyte. The electrolyte includes a carbonate solvent, a primary lithium salt present in the solvent at a concentration in the range of 0.6 M to 2.0 M, a secondary lithium salt optionally present in the solvent at a concentration in the range of 0.1 M to 0.5 M. The electrolyte further includes a phenyl additive including at least one of a fluorine substituent and a fluorinated substituent, the phenyl additive present in an amount of 0.5 percent by weight to 20 percent by weight of the total weight of the electrolyte, and a co-additive present in the range 0.1 weight percent to 20 weight percent of the total weight of the electrolyte.

Abstract: A lithium manganese iron phosphate (LMFP) based vehicle battery cell, a battery for an electric vehicle, and a method is provided. The battery cell includes a cathode current collector and a cathode having a multiple element-doped active material. The active material includes LMFP formed using multiple element doping and having the formula LiMnaFebMgcTidCoeNbfYgPO4, where the value a is equal to or greater than 0.5, the value b is equal to or greater than 0.1, the value c is equal to or greater than 0.0005 and equal to or less than 0.1, the value d is equal to or greater than 0.0005 and equal to or less than 0.1, the value e is equal to or less than 0.05, the value f is equal to or less than 0.02, and the value g is equal to or less than 0.05.

Abstract: A battery for a vehicle battery pack, a capacitor-assisted current collector, and a method is provided. The vehicle battery pack includes a battery pack housing and at least one vehicle battery cell carried by the battery pack housing. The at least one vehicle battery cell includes a cathode, an anode, a separator, and an electrolyte. The at least one vehicle battery cell further includes a current collector and a multi-functional coating layer disposed on and adhered to at least one side of the current collector. The multi-functional coating layer is configured to provide fast charge capability for the vehicle battery pack. The multi-functional coating layer includes a capacitor material configured to enhance pulsed and continuous charge rate capability, a conductive filler configured to provide electrical conductivity, and a binder configured to provide adhering capability between the multi-functional coating layer and the current collector.

Abstract: A battery cell includes A anode electrodes, C cathode electrodes, and S separators where C, A and S are integers greater than one. The C cathode electrodes each include a cathode current collector and a cathode active material layer arranged on the cathode current collector. The cathode active material layer comprises a cathode active material, a conductive filler, and a binder including a fibrillating binder and a co-polymer including polyacrylonitrile (PAN) and polyacrylic acid (PAA).

Abstract: A method for manufacturing a cathode electrode of a battery cell includes providing a dry powder mixture including an active material, a conductive additive, and a binder to a first extruder; mixing the active material, the conductive additive, and the binder in the first extruder; partially fibrillating the binder in the first extruder; supplying an admixture from the first extruder to a first input of a second extruder; supplying a solvent to a second input of the second extruder; mixing the active material, the conductive additive, the binder, and the solvent in the second extruder; fibrillating the binder in the second extruder; and forming an active material layer using an extrudate die arranged at an output of the second extruder.

Abstract: A capacitor-assisted battery includes an electrolyte having a lithium-ion conducting component and one or more additives. The one or more additives include a first additive that includes 3-trimethylsilylphenylboronic acid and a second additive that includes succinic anhydride. The capacitor-assisted battery includes an electrode having an electroactive material and a capacitor material. The electroactive material has a first coating defined thereon, and the capacitor material has a second coating defined thereon. The first and second coatings are defined by the first and second additives. The first coating is a substantially continuous coating that covers greater than or equal to about 80% of a total exposed surface area of the electroactive material. The second coating is a discontinuous coating covers greater than or equal to about 20% to less than or equal to about 80% of a total exposed surface area of capacitor material.

Abstract: A battery cell includes A anode electrodes including an anode active material layer and an anode current collector, S separators, and C capacitor-boosted cathode electrodes, where A, C, and S are integers greater than one. Each of the C capacitor-boosted cathode electrodes includes a cathode current collector; a capacitor layer arranged on the cathode current collector; and a cathode active material layer including cathode active material arranged on the capacitor layer.

Abstract: A battery that cycles lithium ions includes an electrolyte including an organic solvent and a lithium salt in the organic solvent. The organic solvent includes greater than or equal to 70 weight percent of a primary solvent including an alkyl alkanoate, ketone, nitrile, or a combination thereof. The electrolyte beneficially may be used in a battery that includes a positive electrode including an electroactive material including a layered nickel-rich lithium transitional metal oxide.

Abstract: A method of making a capacitor-assisted hybrid electrode for a lithium-ion electrochemical cell includes admixing a solvent, a cellulose-based dispersant, and a plurality of capacitive particles comprising carbon to form a dispersion. The cellulose-based dispersant forms hydrogen bonds with one or more carbonyl-groups on the capacitive particles comprising carbon. The dispersion is combined with an electroactive material, an electrically conductive material, and a binder to form a slurry. The slurry is applied to a current collector and solidified to form the capacitor-assisted hybrid electrode having a composite hybrid active layer on the current collector. Capacitor-assisted hybrid electrodes formed from such methods are also provided.

Abstract: A method for manufacturing an electrode includes feeding an electrode mixture to a first conveyor belt. The electrode mixture includes electrode active materials, conductive carbons and polymeric binders. The first conveyor belt moves the electrode mixture film along a first belt-moving direction. The method further includes transferring the electrode mixture film from the first conveyor belt to a second conveyor belt. The second conveyor belt moves the electrode mixture film along a second longitudinal direction. The first belt-moving direction is oblique angled relative to the second longitudinal direction. The side rollers on the second conveyor fold the electrode mixture film at a certain angle with the support of a pair of guide rollers. The method includes hot pressing the electrode mixture film using at least one hot roller to fiberize the PTFE binder along the second belt-moving direction.

Abstract: A system for drying polytetrafluoroethylene (PTFE) based semi-dry electrode film includes a heating chamber including an inlet adapted to receive a PTFE-based semi-dry electrode film into the heating chamber, an outlet adapted to allow the PTFE-based semi-dry electrode film to exit the heating chamber, a plurality of rollers positioned within the heating chamber and adapted to support the PTFE-based semi-dry electrode film and guide the PTFE-based semi-dry electrode film along a serpentine path through the heating chamber between the inlet and the outlet as the PTFE-based semi-dry electrode film is pulled through the heating chamber, and at least one heating element adapted to heat an interior of the heating chamber, wherein, the heating chamber is adapted to remove, by evaporation, at least a portion of solvent that is present within the PTFE-based semi-dry electrode film that enters the heating chamber.

Abstract: Systems, methods, and compositions for an electrolyte that inhibits thermal runaway are disclosed. For example, an electrochemical cell may include an anode, a cathode, and the electrolyte. The anode includes a lithiated silicon oxide material, the cathode includes a nickel-rich material, and the electrolyte is formed from an electrolyte mixture. The electrolyte mixture includes a primary salt, a secondary salt, and a solvent. The primary salt is configured to facilitate ion movement between the anode and the cathode. The secondary salt is a high-HOMO salt. The secondary salt is also configured to form a solid-electrolyte interphase on the anode and a cathode-electrolyte interphase on the cathode. The solvent includes a cyclic solvent component, a linear solvent component, and a fluorinated solvent component.

Abstract: A cathode electrode for a secondary battery, a vehicle battery, and method of forming a cathode electrode. The cathode electrode includes a cathode current collector and a cathode disposed on a surface of the cathode current collector. The cathode includes an active material including at least one of lithium iron phosphate and lithium manganese iron phosphate, a binder including polytetrafluoroethylene, styrene-butadiene-rubber, and at least one of polyacrylic acid and a polyacrylic acid-polyacrylonitrile copolymer, and a conductive filler, wherein the cathode electrode exhibits an areal capacity in the range of 3 milliamp-hours per square centimeter to 10 milliamp-hours per square centimeter. The vehicle battery includes the cathode disposed on a cathode current collector.

Abstract: A cathode electrode for a secondary battery, a vehicle battery including the cathode electrode, and a method of forming a cathode for a secondary battery. The cathode electrode includes a cathode disposed on a surface of a cathode current collector, wherein the cathode includes an active material including at least one of lithium iron phosphate and lithium manganese iron phosphate, a binder including polyvinylidene fluoride and polytetrafluoroethylene and a conductive filler.

Abstract: A capacitor assisted battery module includes a first diode including an anode and a cathode. A second diode includes an anode and a cathode. The anode of the first diode is connected to the cathode of the second diode at a first node. A first capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, where N is an integer greater than zero. The positive terminal of the first CAB block is connected to the cathode of the first diode. A second capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, wherein the negative terminal of the second CAB block is connected to the anode of the second diode. The negative terminal of the first CAB block and the positive terminal of the second CAB block are connected to a second node.

Abstract: A battery system includes a pressure sensor configured to sense pressure changes corresponding to thickness changes of at least one of a plurality of battery cells of a battery. A battery management module includes a state of charge (SOC) estimator configured to estimate the SOC of the battery. Based on sensed pressure, the SOC estimator detects at least one of a first inflection point and a second inflection point during one of charging and discharging of the battery, and calibrates the SOC of the battery based on at least one of a first SOC value and a second SOC value corresponding to the at least one of the first inflection point and the second inflection point, respectively.

Abstract: The present disclosure provides an electrode for an electrochemical cell. The electrode includes a polymer binder network and a plurality of electroactive material particles. The polymer binder network includes a plurality of fibers defining the polymer binder network. Each of the plurality of fibers includes a plurality of beads and a plurality of filaments. The plurality of filaments extends from at least a portion of the plurality of beads, respectively. The plurality of electroactive material particles is in voids of the polymer binder network. In certain aspects, the present disclosure provides a single- or double-sided electrode component including a current collector and the electrode.

Abstract: A pouch-type, capacitor-assisted battery cell includes: N negative electrodes, where N is an integer greater than one, each of the N negative electrodes includes a first current collector, first particulate electrode material, and a first tab; P positive electrodes, where: P-M ones of the P positive electrodes include a second current collector, second particulate electrode material, and a second tab, M ones of the P positive electrodes include a third current collector, third particulate electrode material including activated carbon (AC) arranged on opposite sides of the third current collector, and a third tab, and P=N?1 and M=2; separators arranged between the N negative electrodes and the P positive electrodes; and a pouch enclosure surrounding the N negative electrodes, the P positive electrodes and the separators; where the M ones of the P positive electrodes are located approximately equidistant from a center of the P positive electrodes.

Abstract: A battery cell includes C cathode electrodes each including a cathode active material layer arranged on a cathode current collector. The cathode active material layer comprises a cathode active material including LiMnxFe1-x-yMyPO4, where x and y are less than one and M includes one or more metal dopants. A anode electrodes each including an anode active material layer arranged on an anode current collector. The anode active material layer comprises an anode active material including graphite and at least one of lithium silicon oxide (LSO) and silicon-carbon (Si—C) and S separators, where C, A and S are integers greater than one.