20results about "Electrolyte/reactants regeneration" patented technology

This invention discloses a battery, a battery pack, and an electrical device. The battery includes a casing, a core, a column, a first membrane, and a second membrane. The casing has an inner cavity, and the core is assembled within the inner cavity. The column supports the core to prevent it from collapsing. The column has a first cavity for storing a lithium replenishment medium and a second cavity for storing a fire-fighting medium. The first cavity has a first hole in its wall, and the second cavity has a second hole in its wall. The first membrane seals the first hole. When subjected to a first pressure, the first membrane ruptures, allowing the lithium replenishment medium in the first cavity to flow into the inner cavity through the first hole. The second membrane seals the second hole. When subjected to a second pressure, the second membrane ruptures, allowing the fire-fighting medium in the second cavity to flow into the inner cavity through the second hole. The second pressure is greater than the first pressure. The battery of this invention enables secondary lithium replenishment, improving the problems of short battery life and severe battery degradation. Furthermore, it has a fire-fighting function in the event of thermal runaway or rapid gas generation, ensuring the safety of battery use.

The present invention relates to the field of batteries, and in particular to a high-capacity battery assembly, a repair mechanism, and a repair method for the high-capacity battery assembly, so as to prolong the service lives of high-capacity batteries while solving the problem of having a difficulty in assembling shared pipeline assemblies of existing high-capacity batteries. The high-capacity battery assembly includes a high-capacity battery and a repair mechanism. The high-capacity battery includes a housing and battery cells arranged in the housing; the housing is provided with an electrolyte region of the inner cavity of each battery cell; an avoidance hole capable of enabling an electrode terminal of each battery cell to extend out is formed on a housing top plate; the electrode terminal of each battery cell extends out from the avoidance hole on the housing top plate, and a region of the housing corresponding to the avoidance hole is fixed and sealed with a shell of the battery cell; and the repair mechanism is connected with the high-capacity battery, and is configured for repairing the high-capacity battery having an attenuated capacity or inhibiting the attenuation speed of the high-capacity battery, so as to improve the performance of the high-capacity battery and prolong the cycle life of the high-capacity battery.

Methods for operating a flooded electrolyte battery cell used in motive service to prevent the loss of water. When charging the cell, water in the electrolyte decomposes electrolytically to oxygen and hydrogen gases. The method includes catalytically recombining the oxygen and hydrogen gases to water vapor, inhibiting venting of the oxygen and hydrogen gases and water vapor from the cell, providing fluid communication between the catalyst and the electrolyte for the oxygen and hydrogen gases and water vapor, and hygroscopically absorbing the water vapor into the electrolyte. Devices and battery cells for carrying out the method are also provided.

Provided is a method for repairing the capacity of a waste lithium-ion battery, which belongs to the field of batteries, so as to improve the charge and discharge cycle performance of the lithium-ion battery, and reduce the use costs of the battery while reducing the pressure of the waste lithium-ion battery on environments. The method includes: first, deeply over-discharging a waste lithium-ion battery; second, discharging a free electrolyte solution and a gas in an inner cavity of the waste lithium-ion battery together with impurities in the inner cavity of the waste lithium-ion battery; then injecting a first electrolyte solution into the inner cavity of the treated waste lithium-ion battery, and allowing the battery to stand for a set time; and testing the capacity of the battery, completing the repair of the capacity of the waste lithium-ion battery if a set target value is reached, otherwise, continuing execution of the operations above. The present disclosure is simple in operation and significant in capacity recovery effect, and greatly prolongs the cycle life of a lithium-ion battery.

To provide a lead sulphate coating removal device which is low in power consumption and which gives no damage to an electrode of a lead storage battery.SOLUTION: A lead sulfate coating removal device which removes a lead sulfate coating generated on an electrode of the lead storage battery and which comprises: a generation unit which generates, on the basis of a signal extracted from the lead storage battery, a removal signal for the lead sulfate coating having a peak value of 550-750 mA, a pulse width of 5-100 nsec, and a frequency of 5-50 kHz; and a supply unit which supplies the removal signal generated by the generation unit to the electrode of the lead storage battery.SELECTED DRAWING: Figure 1

A method for filling oxygen into a NiMH battery module (1) comprising one battery cell (2), the battery module having a casing (4) encompassing the battery cell and a gas space, wherein each battery cell (2) comprises a first electrode, a second electrode, a porous separator, and an aqueous alkaline electrolyte arranged between the first electrode and the second electrode, wherein the casing (4) f comprises an inlet (25) for adding oxygen to the gas space of the battery cell (2). The method comprises monitoring (S72) battery module temperature and initiating filling of oxygen at an initial flow rate; and regulating the oxygen filling flow rate based on the monitored battery module temperature to avoid exceeding an upper temperature limit.

A charge cathode assembly includes: an electrically conductive plate having a first and second plurality of apertures therein, the second plurality of apertures being through- apertures; a plurality of pellets of a cathode material that is not weldable to the electrically conductive plate, the plurality of pellets embedded in the first plurality of apertures so that a portion of each pellet protrudes from the apertures; and, a non-conductive coating on exterior surfaces of the electrically conductive plate, the non-conductive coating filling spaces between the protruding portions of the plurality of pellets so that end faces of the protruding portions are not coated with the non-conductive coating, the non-conductive coating engaging itself through the second plurality of apertures for securing the non- conductive coating to the electrically conductive plate.

According to one aspect, a system for electrochemical power storage may include at least one instance of a battery module, each instance of the battery module including a battery enclosure and a metal-air battery, the metal-air battery disposed in the battery enclosure; a reservoir including a volume of a liquid electrolyte; a supply conduit in fluid communication between the reservoir and the battery enclosure; a pump actuatable to move the liquid electrolyte from the reservoir into the battery enclosure via the supply conduit; and a return conduit in fluid communication between the battery enclosure and the reservoir, the liquid electrolyte movable from the battery enclosure to the reservoir, via the return conduit, with the metal-air battery immersed in the liquid electrolyte in the battery enclosure.

The application provides a battery electrolyte impurity treatment system and method, and belongs to the technical field of batteries, comprising a recovery tank, a filtering mechanism, a temperature control system and an electrophoresis mechanism. The upper part of the side wall of the recovery tank is provided with a liquid inlet pipe, the bottom of the recovery tank is provided with a sedimentation tank, and the sedimentation tank is provided with a discharge pipe. The filtering mechanism comprises a filter box and a filter layer, the filter box is connected with the liquid inlet pipe, and the filter layer is arranged in the filter box. The temperature control system is arranged in the recovery tank and is used for improving the temperature of the electrolyte in the recovery tank. The electrophoresis mechanism comprises a positive electrode row and a negative electrode row, the positive electrode row and the negative electrode row are arranged at the top of the recovery tank, and the positive electrode row and the negative electrode row are connected with the power supply through power supply lines. The battery electrolyte impurity treatment system provided by the application can remove large-particle suspended matter, non-dissolved substances and metal ion impurities in the electrolyte, can improve the solubility of the organic matter in the negative electrode additive and the separator in the electrolyte, and can ensure the performance index of the battery.

This invention provides a lithium-ion battery recovery treatment method, a charging and discharging device, and a storage medium that effectively restores the performance of lithium-ion batteries. A lithium-ion battery has a positive electrode and a negative electrode, and its performance is reduced due to residual lithium ions at the negative electrode. The lithium-ion battery recovery treatment method repeatedly performs multiple cycles including a first step and a second step. In the first step, the state of charge (SOC) of the lithium-ion battery is brought to a first value (S1) by charging. This first value (S1) is below the SOC value when the slope of the SOC-voltage curve reaches its minimum, and above the SOC value when the slope of the SOC-voltage curve reaches twice the minimum. In the second step, the SOC of the lithium-ion battery is brought to a second value (S2) that is smaller than the first value by discharging.

The application discloses to the technical field of lead-acid storage batteries, and particularly relates to a lead-acid storage battery recovery method, which comprises the following specific steps: S1, battery detection: firstly, appearance inspection is performed on the lead-acid storage battery to check whether defects exist, then a battery detector is used to detect the parameters of the battery, and the damage degree and main problems of the battery are determined; S2, electrolyte extraction and cleaning: all electrolyte in the battery is extracted, then distilled water is added into the battery to soak the plates, after soaking, the distilled water is extracted, and the cleaning process is repeated. The application can avoid secondary damage of the plates caused by large current, accurately solve the problem of capacity reduction caused by plate vulcanization, and has more remarkable recovery effect compared with the case that lead sulfate crystals cannot be decomposed in conventional charging.

The invention relates to a method for recycling a battery, having the steps of: (a) providing an at least partially discharged battery, (b) comminuting the at least partially discharged battery in a process chamber (11) in order to obtain battery parts, (c) drying the battery parts in a process chamber (11) in order to obtain dried battery parts and a separated gas, and (d) packing the dried battery parts in order to form a package. The invention is characterized in that steps (b) and (c) are carried out in the same process chamber (11). The invention additionally relates to a mobile device for recycling a battery using the method and to a package in which 1 to 30 kg of battery parts are contained and which can be obtained using the method.

The present application relates to the technical field of batteries, and particularly to a battery manufacturing process, a battery treatment device, a battery, and a power-consuming device. The battery manufacturing process comprises: obtaining a battery to be subjected to treatment, and subjecting the battery to electrolyte injection; and charging the battery before sodium in the battery is reduced at the negative electrode. In the present application, the battery is charged before sodium in the battery is reduced at the negative electrode; during the process of charging the battery, water can receive electrons at the negative electrode to undergo a reduction reaction, so as to produce hydrogen and hydroxy radicals, or water is decomposed in the electrolyte to produce hydrogen ions, and the hydrogen ions can receive the electrons at the negative electrode to undergo a reduction reaction so as to produce hydrogen; in such a way, water in the battery can be removed; after the water removal, sodium is reduced at the negative electrode to produce an elementary sodium metal, thus reducing the risk of the reduced sodium reacting with water, reducing a loss of battery capacity, and improving the cycling performance of the battery.

This application discloses a capacity compensation additive and a method for preparing the same, a positive electrode sheet, a battery, and a power consumption device, wherein the capacity compensation additive comprises a capacity compensating agent and a catalyst-containing carbon material, and the catalyst-containing carbon material is coated on at least a portion of the surface of the capacity compensating agent.

Method and system for at least partially desulfating at least one lead-acid battery, wherein a series of current pulses formed by positive current pulses alternating with negative current pulses are applied to the at least one battery. The alternating positive and negative current pulses are applied to the at least one lead-acid battery with a separating time between consecutives pulses that is below a predefined time.

The invention relates to a battery cell comprising: a housing (2), a cell stack (3) with an electrode, in particular an anode (31), a liquid electrolyte, wherein the cell stack (3) and the electrolyte are arranged in the housing (2), and a reservoir (5) with a healing substance which is configured to form an interface layer at the electrode, wherein the reservoir (5) is arranged in the housing (2), and wherein the reservoir (5) is configured to release the healing substance to the electrolyte in order to repair damage to the interface layer.

The present application discloses a capacity compensation additive and a preparation method therefor, as well as a positive electrode plate, a battery and an electrical apparatus. The capacity compensation additive includes a capacity compensation agent and a catalyst-containing carbon material, and the catalyst-containing carbon material is coated on at least a portion of a surface of the capacity compensation agent.

Provided are devices, systems, and methods for rejuvenating degraded energy devices. In one aspect, the present disclosure provides a method for rejuvenating an energy device, the method comprising: using at least one acoustic device to generate acoustic waves to facilitate flow and / or distribution of fresh or unused chemicals into the energy device and to replace and expel aged or used chemicals out of the energy device, thereby rejuvenating the energy device and rendering the energy device suitable for continued usage.

The present invention relates to a liquid-metal hydride battery. The battery is characterized in that the battery further comprises added oxygen or hydrogen or hydrogen peroxide or a combination thereof to rebalance the electrodes and to replenish the electrolyte by reaction with the electrode materials.

Provided are devices, systems, and methods for rejuvenating degraded energy devices. In one aspect, the present disclosure provides a method for rejuvenating an energy device, the method comprising: using at least one acoustic device to generate acoustic waves to facilitate flow and / or distribution of fresh or unused chemicals into the energy device and to replace and expel aged or used chemicals out of the energy device, thereby rejuvenating the energy device and rendering the energy device suitable for continued usage.