34results about "Gastight accumulators" patented technology

A method for manufacturing a nonaqueous electrolyte secondary battery includes a step for obtaining a battery assembly, a charging step, and a sealing step. In the battery assembly, an electrode body including a positive electrode and a negative electrode, and a non-aqueous electrolyte solution are housed in a battery case having a through-hole. In the charging step, the battery assembly is charged. In the sealing step, after the charging step, the through-hole is sealed by a sealing member. In the charging step, charging is performed under charging conditions in which the temperature of the gas in the battery case increases. The sealing step is performed while maintaining a temperature rise in the battery case. After the sealing step, the temperature in the battery case is reduced, and the contraction of the battery case and / or the reduction of the internal pressure are / is generated by the contraction of the gas in the battery case.

The application belongs to the technical field of nickel-hydrogen batteries, and particularly relates to a middle nickel-hydrogen battery wedge-shaped fixing structure. The wedge-shaped fixing structure comprises an outer shell, two electrically connected nickel-hydrogen batteries arranged in the middle of the outer shell, a welding part formed by welding the sides of the two nickel-hydrogen batteries close to each other, a hollow channel arranged in the center of the welding part, a conductive column slidably arranged in the hollow channel, a wedge-shaped clamping groove arranged at the top end of the conductive column, a wedge-shaped clamping block arranged on the inner side wall of the outer shell and corresponding to the wedge-shaped clamping groove, a top block arranged below the conductive column, the top block being slidably arranged in the hollow channel, a top rod fixedly connected to the bottom end of the top block, and the other end of the top rod penetrating through the side wall of the outer shell and being threadedly connected with the side wall of the outer shell. The wedge-shaped fixing structure has a simple structure and can conveniently install and dismount the nickel-hydrogen battery.

A current collector includes a support portion and a conductive portion. The support portion includes an electrically insulating resin composition. The conductive portion includes a first conductive layer, a second conductive layer, and a third conductive layer. The first conductive layer and the second conductive layer extend from the support portion. The third conductive layer is disposed between the first conductive layer and the second conductive layer, is joined to both the first conductive layer and the second conductive layer, and extends from between the first conductive layer and the second conductive layer.

A method of manufacturing a non-aqueous electrolyte secondary battery includes the steps of obtaining a battery assembly, charging, and sealing. The battery assembly includes an electrode body, a non-aqueous electrolyte solution, and a battery case including a through hole. The step of charging involves charging the battery assembly. The step of sealing involves sealing the through hole with a sealing member after the charging step. In the step of charging, the charging is performed under a charging condition that causes a temperature of a gas inside the battery case increases. The step of sealing is performed while keeping the temperature inside the battery case having been increased. After the step of sealing, the temperature inside the battery case decreases, and the gas inside the battery case contracts, to thereby cause a contraction and / or an internal pressure decrease of the battery case.

A method of producing a porous carbon for use as a catalyst support having a specific surface area of 500 m2 / g or greater is provided, comprising: a first step of carbonizing a material containing a carbon source and a template source, to prepare a carbonized product; a second step of immersing the carbonized product into a template removing solution, to remove a template from the carbonized product; and a third step of heat treating the carbonized product from which the template has been removed, the method characterized by: controlling amount of functional groups that are present in the porous carbon, comprising changing type of the template removing solution or temperature of the heat treatment, wherein the template size is 3 nm to 30 nm.

A current collector includes a support layer, an electrically conductive layer, and an intermediate electrically conductive layer. The support layer is made of a resin composition having an electrical insulation property. The electrically conductive layer is made of metal containing aluminum. The intermediate electrically conductive layer is made of metal containing magnesium. The electrically conductive layer is joined to the support layer via the intermediate electrically conductive layer.

A hybrid battery system (HBS) for supplying power during long-term outages and short-term outages for a datacenter and related methods are described. An example HBS comprising a set of solid-state hydrogen batteries (SSHBs) and a set of rechargeable batteries (RBs) is configured to supply power to compute resources associated with a datacenter. The hybrid battery system is coupled to fuel cells to supply hydrogen to the fuel cells by heating an SSHB. A power control system is configured to: (1) during a short-term outage associated with the datacenter, selectively cause a subset of the set of RBs to supply power to the compute resources, and (2) during a long-term outage associated with the datacenter, selectively cause heat to be supplied to the set of SSHBs, resulting in a supply of hydrogen to one or more of the fuel cells, allowing supply of power to the compute resources.

A cylindrical battery cell 12 for a battery module (10, Figure 1) of a motor vehicle, comprising a cell housing 14 containing a plurality of layers 18 arranged adjacent to one another in an axial dire

The invention provides a current collector and a battery. The current collector includes a support layer, a first conductive layer, and a lug portion. The support layer is composed of a resin composition having electrical insulating properties. The first conductive layer is laminated on the support layer. The lug portion is configured from a film-like member. The lug portion includes a lug body portion and a first heat dissipation portion. The lug body portion is bonded to the first conductive layer by ultrasonic welding. The lug body portion extends away from the first conductive layer. The first heat dissipation part is shorter than the lug body part in the extending direction of the lug body part. The first heat dissipation part is not bonded to the first conductive layer by ultrasonic welding.

A method for fabricating a high-capacity, low-temperature vanadium-based rechargeable hydrogen electrochemical battery based on a Nafion proton exchange membrane integration belongs to the field of electrochemical energy storage technology. This method sequentially prepares V... FeCN -VHCF positive electrode, Pt / C negative electrode catalyst, V FeCN A solid-state proton cell was finally assembled from a composite material of VHCF, Nafion proton exchange membrane, and Pt / C catalyst. Among these, VHCF... FeCN The -VHCF positive electrode is prepared by dissolving vanadium pentoxide in hydrochloric acid dilution solution and adding glycerol to prepare a precursor, which is then co-precipitated with potassium ferricyanide solution. The composite material is prepared by loading the positive and negative electrode slurries with DuPont Nafion proton exchange membranes and drying them. The battery can be assembled by using an air-filled button cell. The battery prepared by this invention still exhibits excellent electrochemical performance at ultra-low temperature (0°C).

The invention relates to a current collector and a battery. The current collector includes a support layer, a conductive layer, and an intermediate conductive layer. The support layer is configured from a resin composition having electrical insulating properties. The conductive layer is made of a metal containing aluminum. The intermediate conductive layer is made of a metal containing magnesium. The conductive layer is bonded to the support layer via the intermediate conductive layer.

A method of filling containers of electrochemical cells includes: filling with electrolyte a plurality of filling units, and coupling each filling unit to a respective container, thus forming a unitary assembly for transferring the electrolyte from the filling unit to the container coupled thereto. The method further includes transferring the electrolyte from the filling unit to the container coupled thereto and uncoupling each filling unit from the respective container. The steps of coupling and uncoupling can be performed inside a conditioned room delimited by walls that separate an inside environment from an outside environment. The pressure and / or humidity conditions of the environment inside the conditioned room being different from the outside environment. The step of transferring can occur at least partially in the outside environment.

A metal recovery method includes causing a metal recovery device (20A) including a power source (3), an electronic load (30), an electrolytic solution (40), a first tank (100A) that includes an anode (11), a first supply port for H2O and a first discharge port (101) and that is immersed in the electrolytic solution (40), the anode (11) being connected to the power source (3) and the electronic load (30) and containing at least Co, and a second tank (200A) that includes a cathode (12), a second supply port for H2O and a second discharge port (201) and that is immersed in the electrolytic solution (40), the cathode (12) being connected to the power source (3) and the electronic load (30), to recover Co eluted from the anode (11) by maintaining voltage by the power source (3) and the electronic load (30) such that a potential of the anode (11) is higher than a potential of the cathode (12).

To suppress the expansion of non-aqueous electrolyte secondary batteries. [Solution] The method for manufacturing a non-aqueous electrolyte secondary battery includes a step S10 for obtaining a battery assembly, a charging step S20, and a sealing step S30. The battery assembly is a battery case having through holes, containing electrode bodies including a positive electrode and a negative electrode, and a non-aqueous electrolyte. In the charging step S20, the battery assembly is charged. In the sealing step S30, after the charging step S20, the through holes are sealed with a sealing member. In the charging step S20, charging is performed under charging conditions that cause the temperature of the gas inside the battery case to rise. The sealing step S30 is performed while maintaining the elevated temperature inside the battery case. After the sealing step S30, the temperature inside the battery case decreases, and the gas inside the battery case contracts, causing the battery case to shrink and / or the internal pressure to decrease.

A current collector comprises a substrate layer, an electrically conductive layer, and an electrically conductive intermediate layer. The substrate layer consists of a resin composition with electrical insulating properties. The electrically conductive layer is made of an aluminum-containing metal. The electrically conductive intermediate layer is made of a magnesium-containing metal. The electrically conductive layer is connected to the substrate layer via the electrically conductive intermediate layer.

A method for manufacturing an energy storage device according to one aspect of the present invention includes: housing, in a case, an electrode assembly in which a negative electrode and a positive electrode are stacked; housing an electrolyte solution in the case; housing a gas, soluble in the electrolyte solution, in the case after the electrolyte solution is housed in the case; and sealing the case in a state where the gas soluble in the electrolyte solution is housed in the case.

The utility model provides a nickel hydrogen battery with charging interface, and the charging interface is arranged on the bottom surface of the protection plate, the opening of the charging interface faces the edge of the protection plate, the protection plate is arranged on the insulating support and the charging interface is clamped in the gap of the insulating support, the elastic connecting piece passes through the through hole of the insulating support, one end of the elastic connecting piece is connected with the protection plate, the other end of the elastic connecting piece is connected with the positive pole of the battery assembly, the metal cover is arranged on the protection plate and the insulating support, the window of the metal cover is opposite to the opening position of the charging interface, the protection plate abuts against the metal cover, and the metal cover is installed on the shell of the battery assembly. The charging interface can be inserted into the charging wire to connect the power supply for charging, the charging interface can be designed as any charging port commonly used in the market, has strong versatility, has charging ecological compatibility, improves charging convenience, is stable and reliable in structure and easy to realize.

The present invention provides a system and method for determining when a battery, or one or more batteries within a battery pack, undergoes an undesired thermal event such as thermal runaway. A sensor pack is mounted in close proximity to, or in contact with, an external surface of the battery or batteries to be monitored and communicates battery information, including battery compartment information, to a battery package monitor outside the battery compartment. Cloud connectivity can be provided via a mobile application to a battery thermal management package.

The testing method disclosed herein tests the thermal propagation occurred in the assembled battery. The testing method includes: calculating a reference voltage value Vs based on the voltages of the single batteries; testing thermal propagation based on the reference voltage value Vs and the voltages of the single batteries. In the testing, if a first voltage difference (Vs - V1) between a voltage Vi of a predetermined first single battery and the reference voltage value Vs is a first threshold value VT1 or more, and a second voltage difference (Vs - V2) between a voltage V2 of a second single battery adjacent to the first single battery and the reference voltage value Vs is a second threshold value VT2 or more, it is determined that the thermal propagation is occurring. According to such a testing method, the thermal propagation occurred can be detected accurately in an early stage.

The application provides a high-temperature nickel-hydrogen battery formula and a preparation process. The positive electrode of the high-temperature nickel-hydrogen battery comprises a base body of foamed nickel, active material of spherical nickel hydroxide, a conductive agent of cobaltous oxide, a binder of sodium carboxymethyl cellulose, an additive of zinc oxide and cerium oxide; the negative electrode comprises a base body of copper mesh, active material of hydrogen storage alloy powder, a binder of polytetrafluoroethylene emulsion, and an additive of neodymium oxide; and the electrolyte comprises sodium hydroxide, potassium hydroxide and barium hydroxide. The positive electrode, a polypropylene diaphragm and the negative electrode are wound into an electric core, a layer of polyimide film is wound outside the electric core, and then the electric core is loaded into a battery steel shell, electrolyte is injected, the battery shell is sealed, and the high-temperature nickel-hydrogen battery is obtained through charging and discharging treatment. The high-temperature nickel-hydrogen battery of the application inhibits the release of oxygen in the positive electrode by adding zinc oxide to the positive electrode, and the addition of cerium oxide can prevent the failure of the spherical nickel hydroxide to a certain extent at a high temperature of more than 50 DEG, so that the charging efficiency of the positive electrode is obviously improved.

A gas storage electrochemical pressure generator and a dual gas storage electrochemical pressure generator are provided. The electrochemical pressure generator includes a power source, an electrochemical pressure generator, one or more gas storage vessels, and a hydraulic device. The electrochemical pressure generator is selectively connected to the power source, and the power source is configured to supply power to the electrochemical pressure generator in a high pressure mode of operation to convert a solid state hydrogen or oxygen within the electrochemical pressure generator to a high pressure gas having a first pressure when connected to the electrochemical pressure generator. The one or more gas storage vessels are in fluid communication with the electrochemical pressure generator, and each gas storage vessel includes a first chamber and a second chamber arranged in series. The first chamber of each of the one or more gas storage vessels is in fluid communication with the electrochemical pressure generator and includes a first surface having a first area of a non-rigid partition element. The second chamber of each of the one or more gas storage vessels includes a second surface having a second area of a non-rigid partition element, the second surface being mechanically connected to the first surface by the non-rigid partition element to produce a second pressure. The hydraulic device is coupled to the second chamber and transmits the second pressure to a load.

A method for manufacturing an energy storage device according to one aspect of the present invention includes: housing, in a case, an electrode assembly in which a negative electrode and a positive electrode are stacked; housing an electrolyte solution in the case; housing a gas, soluble in the electrolyte solution, in the case after the electrolyte solution is housed in the case; and sealing the case in a state where the gas soluble in the electrolyte solution is housed in the case.

This prevents the conductive layer from peeling off from the support layer. [Solution] The current collector 100A comprises a support layer 110, a conductive layer 120, and an intermediate conductive layer 130. The support layer 110 is made of an electrically insulating resin composition. The conductive layer 120 is made of a metal containing aluminum. The intermediate conductive layer 130 is made of a metal containing magnesium. The conductive layer 120 is joined to the support layer 110 via the intermediate conductive layer 130.

The present specification relates to a battery device comprising:-electrodes comprising an anode and a cathode, and-an electrolyte between the electrodes comprising a crystalline material having the composition M2B2O5. X (HOH). Y (NOH), where M and N are alkali metals or hydrogen or mixtures of alkali metals or hydrogen, B is titanium, O and H represent the elements oxygen and hydrogen, respectively, and x and y are 0 to 4 and represent the presence of H +, OH-, N + ions capable of migrating in the crystalline material, in particular at least one of H +, OH-, N + and M + ions is movable to migrate within the crystalline material to at least one electrode, and the at least one electrode is made of a material adapted to chemically interact with at least one of the H +, OH-, N + and M + ions.

A method of manufacturing a non-aqueous electrolyte secondary battery includes the steps of obtaining a battery assembly, charging, and sealing. The battery assembly includes an electrode body, a non-aqueous electrolyte solution, and a battery case including a through hole. The step of charging involves charging the battery assembly. The step of sealing involves sealing the through hole with a sealing member after the charging step. In the step of charging, the charging is performed under a charging condition that causes a temperature of a gas inside the battery case increases. The step of sealing is performed while keeping the temperature inside the battery case having been increased. After the step of sealing, the temperature inside the battery case decreases, and the gas inside the battery case contracts, to thereby cause a contraction and / or an internal pressure decrease of the battery case.

The application provides a low-temperature nickel-hydrogen battery formula and a preparation process. A positive electrode of the low-temperature nickel-hydrogen battery comprises a base body of foamed nickel, active material of spherical nickel hydroxide, a conductive agent of cobaltous oxide, a binder of sodium carboxymethyl cellulose, an additive of zinc oxide and cerium chloride; a negative electrode comprises a base body of copper mesh, active material of hydrogen storage alloy powder, a binder of polytetrafluoroethylene emulsion, and an additive of yttrium oxide; an electrolyte comprises sodium hydroxide, potassium hydroxide, barium hydroxide and carboxymethyl cellulose. The positive electrode, a polypropylene diaphragm and the negative electrode are wound into an electric core, a layer of polyimide film is wound outside the electric core, and then the electric core is loaded into a battery steel shell, electrolyte is injected, the battery shell is sealed, and the low-temperature nickel-hydrogen battery is obtained through charging and discharging treatment. The low-temperature nickel-hydrogen battery of the application inhibits the release of oxygen in the positive electrode by adding zinc oxide to the positive electrode, and the addition of cerium chloride can prevent the failure of the spherical nickel hydroxide to a certain extent at a low temperature greater than 40 DEG, so that the charging efficiency of the positive electrode is obviously improved.

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.