A system for extending a range of an electric vehicle includes a graphene-based metal-air battery system (GMABS), an electrolyte management system (EMS), a flow management system (FMS), one or more auxiliary power sources, and a real-time monitoring and feedback system (RMS). The GMABS includes multiple cells electrically connected to each other and filled with an electrolyte for initiating a reaction to generate power. The EMS regulates a temperature of the electrolyte flowing through the cells. The FMS regulates a circulation of the electrolyte in the GMABS. At least one auxiliary power source is connected to the GMABS to receive and deliver the power to components of the electric vehicle. The RMS continuously computes and monitors a state of charge of each auxiliary power source in real time to facilitate a continuous power delivery to the electric vehicle, thereby extending the range of the electric vehicle.

The present disclosure relates to a method of recovering a degenerated lithium battery cell, with the lithium battery cell being configured so that an electrode assembly including a positive electrode, a negative electrode and a separator interposed therebetween is impregnated with a non-aqueous electrolyte and embedded in a battery case, the method including: subjecting a lithium battery cell degenerated by 5% or more to a high temperature treatment for 1 to 6 hours at a temperature ranging from 60° C. to 100° C. in a fully discharged state.

The present utility model relates to the technical field of battery devices, and in particular to a high energy density charge-discharge battery. One end of an anode is arranged in a first electrolyte chamber, and one end of a first cathode is arranged in a second electrolyte chamber. The first electrolyte chamber, a buffer electrolyte mechanism and the second electrolyte chamber are sequentially connected. According to the present application, the cost of battery electrodes is reduced, the energy density of rechargeable batteries is improved, and the service life of rechargeable batteries is prolonged.

A method for regenerating a secondary battery is disclosed and includes a discharge step before drilling, wherein the secondary battery is discharged so that no current is generated between two electrodes; a drilling step, wherein the secondary battery is drilled from an electrode terminal towards an internal direction of the secondary battery until passing through a spacer inside the secondary battery to form a drilled hole in the spacer; a solution replenishing step, wherein a solution injection needle is used to pass through the drilled hole to inject internally to the secondary battery with a supplemental electrolyte solution and the injection pressure of the supplemental electrolyte solution injected is greater than the internal pressure inside the secondary battery; and a sealing step, wherein the solution injection needle is withdrawn from the drilled hole and a sealant is applied to the drilled hole until the sealant is cured and solidified.

A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric acid or hydrochloric acid at a pH less than 2. Cobalt, nickel, and manganese oxides from the recycled lithium-ion battery material dissolve into the acidic water with the reductive assistance of gaseous sulfur dioxide. Anode carbon is filtered from the acidic water, leaving the dissolved cobalt, nickel, and manganese oxides in a filtrate. The filtrate is mixed with aqueous sodium hydroxide at a pH greater than 8. Nickel cobalt manganese hydroxide precipitates from the filtrate. The nickel cobalt manganese hydroxide is filtered from the filtrate and dried. The filtrate may be treated ammonium fluoride or ammonium bifluoride to precipitate lithium fluoride from the filtrate. The composition ratio of nickel to cobalt to manganese in the acid filtrate may be adjusted to a desired ratio. The anode carbon is recovered and purified for reuse.

A method of recycling a Lithium-ion battery includes removing a plurality cells from a container of the battery without dismantling the cells, removing an electrolyte from the cells, re-lithiating the cells using lithium as a source of re-lithiation, and packaging the re-lithiated cells in a new container to form a new battery.

An electrochemical cell includes a housing, a positive electrode substrate disposed within a first electrode chamber of the housing, a negative electrode substrate disposed within a second electrode chamber of the housing, and a separator may be disposed within the housing between the first electrode chamber and the second electrode chamber. A method further includes pumping a manufacturing electrolyte through the positive electrode portion around the positive electrode substrate. The method further includes applying a first electrical signal to the positive electrode substrate so as to electrochemically fabricate one or both of an active material the negative electrode substrate to form a negative electrode and/or an active material on the positive electrode substrate, thereby forming a positive electrode.

Improved battery systems, apparatuses, and methods for use in electric air, land, and marine vehicles and mobile, portable, and stationary electrical appliances and devices are provided. The systems employ acoustic and current manipulation of anode interface deposits including dendrites on or proximate lithium and other anodes. This invention may employ multistatic ultrasonic phased arrays and current modulation to 1) minimize deposit, e.g., dendrite, initiation and formation by acoustic stirring, 2) acoustically image dendritic growths to monitor changes in dendrite growths, 3) cue dendrite cleaning and battery shutdown to avoid short circuit, 4) induce failure in dendritic structure and shearing of at least a portion of the dendrite from the anode, and 5) transport sheared dendrites and other dead metal to a graveyard.

A secondary battery recombination system includes catalyst and hydrophobic gas diffusion layers defining an electrode that recombines hydrogen and oxygen into water, and a scaffold encapsulating and in non-bonded contact with the electrode. The electrode may be carbon cloth, carbon felt, carbon foam, or carbon paper. The scaffold may be expanded metal or perforated foil.

A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric acid or hydrochloric acid at a pH less than 2. Cobalt, nickel, and manganese oxides from the recycled lithium-ion battery material dissolve into the acidic water with the reductive assistance of gaseous sulfur dioxide. Anode carbon is filtered from the acidic water, leaving the dissolved cobalt, nickel, and manganese oxides in a filtrate. The filtrate is mixed with aqueous sodium hydroxide at a pH greater than 8. Nickel cobalt manganese hydroxide precipitates from the filtrate. The nickel cobalt manganese hydroxide is filtered from the filtrate and dried. The filtrate may be treated ammonium fluoride or ammonium bifluoride to precipitate lithium fluoride from the filtrate. The composition ratio of nickel to cobalt to manganese in the acid filtrate may be adjusted to a desired ratio. The anode carbon is recovered and purified for reuse.