48results about "Gastight accumulators" patented technology

A hydrogen storage assembly includes an enclosure substantially encompassing an electrolyzer, a hydrogen storage system, a hydrogen fuel cell, an electrochemical energy storage module, a power conversion system, and a control system. The electrolyzer is configured to separate, via electrolysis, water into hydrogen gas that is stored in the hydrogen storage system; the hydrogen fuel cell is configured to convert the stored hydrogen gas into electrical energy and water. The electrochemical energy storage module is configured to function as an energy buffer; the power conversion system is configured to convert the produced electrical energy to a desired form. The control system is configured to control the storage and distribution of the stored hydrogen and electrical energy in an optimized manner to achieve predefined financial and energy-use objectives.

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.

1. A method for filling a container (C) of an electrochemical cell (302) with electrolyte, the method comprising the steps of filling a plurality of filling units (2) with electrolyte, coupling each filling unit (2) to a corresponding one of the containers (C) to form an integrated assembly (4), transferring the electrolyte from the filling units (2) to the container (C), and decoupling each filling unit (2) from the container (C), wherein the coupling and decoupling steps between the filling units (2) and the container (C) are performed inside a conditioned chamber (116, 116'), the conditioned chamber (116, 116') is bounded by a wall separating an environment therein from an environment therein outside, the pressure and / or humidity conditions of the internal environment being different from those of the external environment, and the step of transferring the electrolyte from the filling units (2) to the container (C) is performed at least partially in an environment external to the conditioned chamber (116, 116').

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.

The application discloses a kind of energy storage batteries based on side current collection lead-out sheet, it is characterized in that, including battery package box, battery module;The battery package box adopts plastic material, inner cavity is integral cavity structure;Battery module is separated with baffle, and the compressible buffer block is set in the both ends of battery module;The battery module includes pole, end plate, polar plate;Polar plate is vertically placed, positive plate is wrapped with diaphragm bag, and diaphragm welding is used to fix positive plate;Polar plate both sides are connected lead-out sheet by roll welding respectively, lead-out sheet includes positive lead-out sheet, negative lead-out sheet;Pole is welded with lead-out sheet;Adjacent battery module is connected by lead-out sheet, and multiple battery modules are welded to form an integral whole.The positive plate of the application is packaged with diaphragm bag, reduces the micro short circuit caused by polar plate powder drop, and battery package assembly is simple, large current performance is good, and the working life is long.

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.

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.

This power storage device is provided with an electrode body and an exterior body in which the electrode body is sealed. The exterior body is constituted of a film-like exterior member. The exterior body includes a first seal part that is sealed by the joining of opposing faces of the exterior member wrapped around the electrode body. The area of a first face is larger than the area of a second face. The first seal part does not overlap the first face in plan view.

The invention discloses a preparation method of a high-stability nickel-metal hydride battery electrode material, and relates to the technical field of electric vehicle batteries, more hydroxyls or active groups can be generated on the surface of foamed nickel through acid pickling to remove nickel oxide and low-temperature plasma etching, bonding with a protective layer is enhanced, and when a carbon-nitrogen protective layer is prepared, the stability of the nickel-metal hydride battery electrode material is improved. According to the method, a nanoscale transition layer is firstly manufactured, then a carbon-nitrogen protection layer is manufactured, foamed nickel and the carbon-nitrogen protection layer can be bridged through the nanoscale transition layer, the adhesive force is improved, active substance particles are ensured to be uniformly distributed by coating active substance slurry in a spray pyrolysis mode, and a small amount of components which are compatible with the carbon-nitrogen protection layer can be added into the active substance slurry; the active material layer and the carbon-nitrogen protection layer are bonded more firmly through the low-temperature heat treatment, more stable bonding can be formed between the active materials and between the active materials and the carbon-nitrogen protection layer through the low-temperature heat treatment, meanwhile, solvents or impurities in the active material slurry are removed, and the structural stability is further improved.

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.

Disclosed is a battery pack in which a seating recess is provided in a horizontal frame so that connection members pass through the horizontal frame through the seating recess, thereby maximizing a height of the horizontal frame. A vertical frame cover is provided in a vertical frame to secure a height of the vertical frame side in each module space. A sealing member is provided in the seating recess to seal the seating recess. A double shielding structure, including a module space cover shielding each module space and a battery pack cover shielding a battery pack housing as a whole, is provided to maximize airtightness of the battery pack.

[A Problem to be Solved] To increase a utilization rate of a positive electrode active material in an alkaline storage battery. [Solution] An alkaline storage battery 1 is an alkaline storage battery in which an electrode group formed by winding a positive electrode plate 3 and a negative electrode plate 4 with a separator 5 interposed therebetween is housed in an outer can together with an alkaline electrolyte solution. The positive electrode plate contains a positive electrode active material that contains nickel hydroxide. The nickel hydroxide is of an α-type. The alkaline electrolyte solution in the outer can is in an amount of V (cm3). The alkaline storage battery has a discharge capacity of Q (Ah). A solution / capacity ratio expressed by V / Q is 2.7 cm3 / Ah or more.

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 invention belongs to the technical field of nickel-hydrogen batteries, and particularly relates to a middle nickel-hydrogen battery wedge-shaped fixing structure. Comprising an outer shell, two nickel-hydrogen batteries which are electrically connected are arranged in the middle of the interior of the outer shell, the sides, close to each other, of the two nickel-hydrogen batteries are welded to each other to form a welding part, a hollow channel is formed in the center of the welding part, and a conduction column is slidably mounted in the hollow channel; a wedge-shaped clamping groove is formed in the top end of the conduction column, a wedge-shaped clamping block is arranged at the position, corresponding to the wedge-shaped clamping groove, of the inner side wall of the outer shell, a top block is arranged below the conduction column and installed in the hollow channel in a sliding mode, and a top rod is fixedly connected to the bottom end of the top block; the other end of the ejector rod penetrates through the side wall of the outer shell and is in threaded connection with the side wall of the outer shell. The device is simple in structure, and the nickel-hydrogen battery can be conveniently mounted and dismounted.

A power storage device includes: a modular structure including at least one power storage module, the power storage module having an electrode stacked body and a sealing member, the electrode stacked body having bipolar electrodes, and the sealing member sealing a side surface of the electrode stacked body; a pair of restraint members disposed at both ends of the modular structure in the first direction to apply a restraint load to the modular structure; and a first intermediate member interposed between the restraint member and the modular structure to transmit the restraint load from the restraint member to the modular structure, wherein the first intermediate member includes a first package that is deformable according to the restraint load and a fluid that is enclosed in the first package.