A doping system is configured to dope an active material included in an electrode with an alkali metal. The doping system includes a doping bath, a conveyor unit, a connection unit, and a drying unit. The doping bath is configured to store a solution containing alkali metal ion and a counter electrode unit. The conveyor unit is configured to convey the electrode along a path that passes through the doping bath. The connection unit includes an electrically conductive electric power supply roller that contacts the electrode, and is configured to couple the electrode to the counter electrode unit. The drying unit is configured to spray a gas onto the electrode that passes through the doping bath and is being conveyed to the electric power supply roller.

Method for pre-lithiating an anode, wherein the method comprises the steps of: packing an anode sheet with a lithium-comprising sheet as a jelly roll or stack in an electrolyte; transferring lithium ions to the anode sheet to obtain a pre-lithiated anode sheet by direct contact between the anode sheet and the lithium-comprising sheet or by discharging or charging the anode sheet towards the lithium-comprising sheet; and dividing the pre-lithiated anode sheet into a plurality of pre-lithiated anodes of a desired size and shape. The invention further relates to an electrochemical cell comprising an an-ode which is pre-lithiated by the method.

Provided is a method for manufacturing an electrode by doping an active material included a layer of an electrode precursor with alkali metal. The electrode precursor and a counter electrode member are brought into contact with a solution containing an alkali metal ion in a dope bath. The counter electrode member includes a conductive base material, an alkali metal-containing plate, and a member having an opening. The member having the opening is located between the conductive base material and the alkali metal-containing plate. The member having the opening is, for example, a resin film having an opening.

The present disclosure relates to a lithium-replenishing material, a preparation method thereof, and a lithium-ion battery. The lithium-replenishing material comprises metal lithium particles and conductive material, and the conductive material includes a built-in segment embedded in metal lithium particles and an exposed segment external to metal lithium particles; the electrical conductivity of the conductive material is greater than 100 s/cm. The lithium-replenishing material of the present disclosure can accomplish the electron conduction between the metal lithium particles and the anode active material through the conductive material, which increases the channel of electron conduction, and at the same time facilitates the transport of lithium ions, and improves the efficiency of lithium-replenishing significantly by rapid intercalation process of lithium ions, thereby resulting in inhibiting the formation of isolated lithium effectively and avoiding the formation of dendrites piercing the battery separator and causing potential safety hazards.

Systems and methods related to manufacturing of Lithium-Ion cells and Lithium-Ion cell cathode materials composed of LFP (Lithium Iron Phosphate) or LMFP (Lithium Manganese Iron Phosphate) are disclosed. In one exemplary implementation, there is provided a method of using a Nitrogen-containing plasma to treat the Lithium-Ion cell’s LFP or LMFP cathode materials. Moreover, the method may include treating the LFP or LMFP cathode materials before and/or after coating the cathode materials on a metal foil.

A lithium ion battery includes a cathode, which has a composite cathode active material, and an anode, which has an anode active material. The composite cathode active material includes at least a first and a second cathode active material, wherein the second cathode active material is a compound having an olivine structure, and wherein at least a lithiation degree of the first cathode active material differs from a lithiation degree of the second cathode active material. Prior to electrolyte filling or the first discharging and/or charging process of the lithium ion battery, the lithiation degree of the first cathode active material is higher than the lithiation degree of the second cathode active material. Prior to electrolyte filling or the first discharging and/or charging process of the lithium ion battery, the anode active material is pre-lithiated. A method for producing a lithium ion battery of this kind is also described.

A process for producing a cathode or anode material adapted for use in the manufacture of fast rechargeable ion batteries. The process may include the steps of Selecting an precursor material that, upon heating in a gas stream, releases volatile compounds to create porous materials to generate a material compound suitable for an electrode in an ion battery. Grinding the precursor material to produce a powder of particles with a first predetermined particle size distribution to form a precursor powder. Calcining the precursor powder in a flash calciner reactor segment with a first process gas at a first temperature to produce a porous particle material suitable for an electrode in an ion battery, and having the pore properties, surface area and nanoscale structures for applications in such batteries. Processing the hot precursor powder in a second calciner reactor segment with a second process gas to complete the calcination reaction, to anneal the material to optimise the particle strength, and to modify the oxidation state of the product for maximising the charge density when the particle is activated in a battery cell to form a second precursor powder. Quenching the second precursor powder. Activating the particles of the second precursor powder in an electrolytic cell by the initial charging steps to intercalate electrolyte ions in the particles.

A lithium ion battery includes a cathode having a composite cathode active material and an anode having an anode active material. The composite cathode active material includes at least one first and one second cathode active material, wherein the second cathode active material is a compound having a spinel structure and wherein at least a lithiation degree of the first cathode active material differs from a lithiation degree of the second cathode active material. A degree of lithiation a of the first cathode active material is higher than a degree of lithiation b of the second cathode active material before electrolyte filling and before the first discharging and/or charging process of the lithium ion battery. The anode active material is pre-lithiated before the electrolyte filling and the first discharging and/or charging process of the lithium ion battery. A method for producing such a lithium ion battery is also described.

A method that includes contacting a Li-containing aqueous liquid with a Li ion-selective membrane while simultaneously applying an electric field thereby extracting Li ions from the Li-containing aqueous liquid; and intercalating the extracted Li ions into a cathode material.

Processes are described for the direct or indirect electrochemical alkaliation of an alkali metal deficient electrochemically active material. The processes include an electrolysis step either during the alkaliation of the alkali metal deficient electrochemically active material on an electrode current collector (direct) or during the regeneration of a reducing agent used for the alkaliation of the electrochemically active material (indirect).