535results about "Electrolyte/reactants regeneration" patented technology

A lithium-ion battery cell includes at least two working electrodes, each including an active material, an inert material, an electrolyte and a current collector, a first separator region arranged between the at least two working electrodes to separate the at least two working electrodes so that none of the working electrodes are electronically connected within the cell, an auxiliary electrode including a lithium reservoir, and a second separator region arranged between the auxiliary electrode and the at least two working electrodes to separate the auxiliary electrode from the working electrodes so that none of the working electrodes is electronically connected to the auxiliary electrode within the cell.

The invention belongs to the technical field of lithium ion batteries, in particular to a method for supplementing lithium for a negative electrode of a lithium ion battery. The method comprises the following steps: spraying or dripping an organic lithium solution on a surface of a negative electrode in an inert atmosphere, so that lithium ions in the organic lithium solution are reverted to metal lithium which is embedded into the negative electrode; and drying the negative electrode. Compared with the prior art, in the method, the organic lithium solution is sprayed or dipped on the surface of the negative electrode evenly so as to realize lithium supplementation in a wet process, thereby effectively avoiding metallic lithium powders floating in the air in a dry process to ensure safe production; and the whole process is simple, the cost is lower, the amount of the lithium supplementation can be controlled accurately through the amount and the time by spraying or dripping the organic lithium solution so as to supplement the lithium evenly, thereby preventing lithium precipitation and deformation of the negative electrode and improving the initial efficiency of the battery. Therefore, the the energy density of the battery is improved. Additionally, the invention further discloses another method for supplementing the lithium for the negative electrode of the lithium ion battery.

A system provides an environmental barrier also useful for providing a circuit, for example, one having a thin-film battery such as one that includes lithium or lithium compounds connected to an electronic circuit. An environmental barrier is deposited as alternating layers, at least one of the layers providing a smoothing, planarizing, and / or leveling physical-configuration function, and at least one other layer providing a diffusion-barrier function. The layer providing the physical-configuration function may include a photoresist, a photodefinable, an energy-definable, and / or a maskable layer. The physical-configuration layer may also be a dielectric. A layered structure, including a plurality of pairs of layers, each pair including a physical configuration layer and a barrier layer with low gas-transmission rates, may be used in reducing gas transmission rate to beyond currently detectable levels.

The present invention provides a process for recovery of copper, aluminum, carbon and cathode material from spent lithium ion batteries having lithium metal oxide cathode material. The cathode material which is recovered can be regenerated with lithium hydroxide and reused as cathode material.

A secondary button cell battery that is particularly suited for use in hearing aid appliances, and an associated charging station. Recharging is accomplished without direct conductive connection between the source of the energy and either the battery or its appliance. Radio frequency energy is harvested in an enclosed chamber in a charging station and applied to the recharging of the button cell. Such energy is harvested by the use of one or more energy harvesting diodes connected in parallel with the battery. Multiple diodes connected in parallel or serial may be used to adjust charging current or voltage or both. Charge control is provided by directly or indirectly detecting the level of charge on the cell. Where the associated appliance is a hearing aid, the charge level detection may be accomplished acoustically by determining the characteristics of the sound emitted by the hearing aid, and charging is accomplished with the cell within the hearing aid appliance.

The present disclosure relates to a method for prelithiation, and in particular, to a method for prelithiation that predopes lithium into at least one unit cell uniformly in large amounts. According to an aspect of the present disclosure, there is provided a method for prelithiation including an preparing at least one unit cell, the unit cell comprising a cathode, an anode, and a separator interposed between the cathode and the anode, disposing the prepared at least one unit cell in a reaction tank, and connecting electrodes having the same polarity, adding an electrolyte solution into the reaction tank, disposing a lithium metal plate in the electrolyte solution, and connecting the lithium metal plate to the anode, and doping the anode.

A lithium-ion battery cell includes at least two working electrodes, each including an active material, an inert material, an electrolyte and a current collector, a first separator region arranged between the at least two working electrodes to separate the at least two working electrodes so that none of the working electrodes are electronically connected within the cell, an auxiliary electrode including a lithium reservoir, and a second separator region arranged between the auxiliary electrode and the at least two working electrodes to separate the auxiliary electrode from the working electrodes so that none of the working electrodes is electronically connected to the auxiliary electrode within the cell.

A lithium-ion battery cell includes at least two working electrodes, each including an active material, an inert material, an electrolyte and a current collector, a first separator region arranged between the at least two working electrodes to separate the at least two working electrodes so that none of the working electrodes are electronically connected within the cell, an auxiliary electrode including a lithium reservoir, and a second separator region arranged between the auxiliary electrode and the at least two working electrodes to separate the auxiliary electrode from the working electrodes so that none of the working electrodes is electronically connected to the auxiliary electrode within the cell.

The invention relates to a maintainable lithium ion battery, which comprises a battery cell, a battery shell body, a battery anode post and a battery cathode post. The battery cell is arranged in the battery shell body and the battery anode post and the battery cathode post are arranged on the battery shell body on which at least one channel that is used for communicating the inside of the batter shell body and the outside is arranged. An openable sealing device is arranged at an exit of the channel communicated with the outside. Simultaneously, the invention also provides a maintenance method of the maintainable lithium ion battery, which includes such steps as removing gas in the battery through the channel, adding electrolyte, vacuumization and the like. The invention can effectively improve the performance of the lithium ion battery, thus more effectively utilizing the lithium ion battery and being beneficial to saving cost.

The invention aims to solve the problems that the service time of a battery after being charged is short due to long using time and the charging efficiency is low, and provides a battery automatic activating method, a battery automatic activating module and a terminal for maintaining the original performance of the battery to the greatest extent. The battery activating module provided by the invention comprises a detection unit, an activation unit and a control unit. The battery activating method comprises the following steps of: periodically collecting, recording and uploading a first working parameter value and a second working parameter value of the battery; determining a key section of a first working parameter and computing a second working parameter variation value which corresponds to the key section of the first working parameter; and comparing the second working parameter variation value with a preset value, determining the using state of the battery according to a comparison result, and activating the battery according to the using state. By the invention, the using state of the battery can be monitored in real time, the battery is activated, the original performance of the battery is protected to the greatest extent, and a using experience of a user can be greatly improved.