The present invention relates to a method for reconditioning of a battery module (1). The battery module (1) comprises two or more battery cells (2), and has a casing (4) encompassing the battery cells and enclosing a common gas space (5). The method comprises the steps of: obtaining data relating to the number of cells of the battery module and voltage over the battery cells; obtaining (102) an indicative parameter related to an internal resistance (Ri) of at least one of the battery cells; determining (104) based on the indicative parameter and the data on the battery module, determining (105a) whether the voltage indication over the at least one of the battery cells is range of voltage indication threshold (Ut0-Ut1), a filling amount of oxygen to be filled into the battery module; and filling (107) the amount of oxygen into the battery module in order to reduce the indicative parameter to a level below the first threshold value.

The invention discloses a recycling method for oxide-based solid electrolyte with original phase, method of fabricating lithium battery and green battery thereof, which is adapted to recycle the solid-state or quasi-solid lithium batteries after discard. The oxide-based solid electrolyte is only used as an ion transport pathway, and does not participate in the insertion and extraction of lithium ions during charge and discharge cycles. Its crystal structure dose not be destroyed. Therefore, the original phase recycle of the oxide-based solid electrolyte is achieved without damage the structure or materials. The recycled the oxide-based solid electrolyte can be re-used to reduce the manufacturing cost of the related lithium battery.

In an aspect, provided is an alkaline rechargeable battery comprising: i) a battery container sealed against the release of gas up to at least a threshold gas pressure, ii) a volume of an aqueous alkaline electrolyte at least partially filling the container to an electrolyte level; iii) a positive electrode containing positive active material and at least partially submerged in the electrolyte; iv) an iron negative electrode at least partially submerged in the electrolyte, the iron negative electrode comprising iron active material; v) a separator at least partially submerged in the electrolyte provided between the positive electrode and the negative electrode; vi) an auxiliary oxygen gas recombination electrode electrically connected to the iron negative electrode by a first electronic component, ionically connected to the electrolyte by a first ionic pathway, and exposed to a gas headspace above the electrolyte level by a first gas pathway.

An electrochemical cell, including a first electrode, a first volume of electrolyte in contact with the first electrode, a second volume of electrolyte, a first separator positioned between the first volume and the second volume, a second electrode in contact with the second volume, and a third volume of electrolyte. A second separator is positioned between the second volume and the third volume. A lithium reservoir electrode is in contact with the third volume.

Battery systems, methods of in-situ grid-scale battery construction, and in-situ battery regeneration methods are disclosed. The battery system features controllable capacity regeneration for grid-scale energy storage. The battery system includes a battery comprising a plurality of cells. Each cell includes a cathode comprising cathode electrode materials disposed on a first current collector, an anode comprising anode electrode materials disposed on a second current collector, a separator or spacer disposed between the cathode and the anode an electrolyte to fill the battery in the spaces between electrodes. The battery system includes a battery system controller, wherein the battery system controller is configured to selectively charge and discharge the battery at a normal cutoff voltage and wherein the battery system controller is further configured to selectively charge and discharge the battery at a capacity regeneration voltage as part of a healing reaction to generate active electrode materials.

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 tank includes a plurality of independent accommodation cavities. Each of the accommodation cavities includes a corresponding fragile structure, and the fragile structures possess different packaging strengths.

The present invention relates to a flow battery system. The system comprises a first and second electrode comprising a lattice structure and at least one electrolyte supply configured to provide flow electrolyte through at least one of the first and second electrodes. A power circuit is operatively connected to the first and second electrodes to provide electrical power from the system.

A lead storage battery management system is disclosed. The lead storage battery management system according to an embodiment, comprises: a lead storage battery regeneration device for generating a pulse wave current to remove oxide films generated on electrodes of a lead storage battery; a measuring device for measuring information on the state of the lead storage battery; a control unit for controlling operations of the lead storage battery regeneration device and the measuring device; and an adjusting device interlocked with the control unit to receive, as an input, an operation value from a user, to thus improve the operation efficiency of the lead storage battery regeneration device, and to easily gain access to information stored in a database and operation state information of the lead storage battery regeneration device to easily control the operation of the lead storage battery regeneration device and the measuring device.

Disclosed herein are improved methods and devices for recycling lithium cathodes from batteries.