Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

44 results about "Battery room" patented technology

A battery room is a room in a facility used to house batteries for backup or uninterruptible power systems. Battery rooms are found in telecommunication central offices, and to provide standby power to computing equipment in datacenters. Batteries provide direct current (DC) electricity, which may be used directly by some types of equipment, or which may be converted to alternating current (AC) by uninterruptible power supply (UPS) equipment. The batteries may provide power for minutes, hours or days depending on the electrical system design, although most commonly the batteries power the UPS during brief electric utility outages lasting only seconds.

Battery room fire extinguishing system

The utility model provides a battery room fire extinguishing system which comprises a battery room body and further comprises an opening and closing cabin door on one side of the battery room body, a plurality of sets of bearing supporting plates are installed in the battery room body, placing plates are installed at the tops of the bearing supporting plates, and battery boxes are movably connected to the tops of the placing plates in an inserted mode. A plurality of groups of box body partition plates are arranged in an inner cavity of the battery box; a device base is arranged on one side of the battery room body, a foam tank is mounted at the top of the device base, an infusion pump is further mounted at the top of the device base, multiple groups of liquid injection pipes are arranged on the other side of the battery box, liquid injection nozzles are mounted at the tail ends of the multiple groups of liquid injection pipes, and normally closed electromagnetic valves are mounted on the outer sides of the multiple groups of liquid injection pipes; according to the utility model, the inner cavities of the battery box are divided by the plurality of groups of box body clapboards, so that batteries can be independently stored, each divided battery cavity is provided with an independent temperature control switch and an independent temperature sensor, and the sensors receive temperature abnormal signals to quickly start a fire extinguishing program so as to accurately and efficiently extinguish fire of the batteries on fire.
Owner:RUIYI (SHANGHAI) MASCH & ELECTRONIC CO LTD

A method for detecting a leak in a liquid cooling system

PendingCN122448452ABusbarElectrical battery
The application discloses a kind of leakage detection methods of liquid cooling system, it is related to leakage detection technical field, including, in the backwater port of liquid cooling unit, pressure sensor is arranged, the pressure in backwater pipeline is monitored in real time;Water immersion sensor is laid out in the low-lying area of battery chamber and electrical chamber, is connected with DC24V power supply line by water immersion rope, for detecting liquid leakage state;Simultaneously, insulation detection module is configured, for measuring the insulation resistance of high-voltage busbar to ground in system.Through two-way detection mechanism, it is combined to judge that backwater pressure is lower than preset threshold value or water immersion sensor output alarm and insulation resistance anomaly, once judging that leakage fault occurs, system executes protection action including PCS emergency stop, direct current circuit breaker tripping and battery disconnecting;The application overcomes the problem of single monitoring means in the prior art, such as slow reaction, false negative or false positive, etc., realizes fault judgment and protection action at the initial stage of leakage, thereby improving the safety and reliability of liquid cooling system operation.
Owner:BEIJING HYPERSTRONG TECH CO LTD

Station building type energy storage power station

The utility model discloses a station building type energy storage power station, which comprises an automation chamber, energy storage converter chambers and battery chambers, the energy storage converter chambers and the battery chambers are sequentially arranged on the left side and the right side of the automation chamber, battery racks are mounted in the battery chambers, battery clusters are arranged on the battery racks side by side, and each battery cluster comprises a plurality of single battery packs which are sequentially connected from bottom to top. An energy storage converter PCS and a confluence cabinet are installed in the energy storage conversion chamber, a battery management system BMS and a frame-type circuit breaker are arranged in the confluence cabinet, each battery cluster is connected with the direct current side of the PCS through the frame-type circuit breaker in the confluence cabinet and connected with a communication interface of the PCS through the BMS in the confluence cabinet, a secondary cabinet is arranged in the automation chamber, and a battery pack is arranged in the secondary cabinet. An energy management system (EMS) is installed in the secondary cabinet, and the EMS is connected with the BMS and the PCS through signal lines. According to the utility model, through the measures of functional area separation, efficient communication management, multiple safety protection, energy conversion efficiency improvement, intelligent energy management and the like, the operation and maintenance efficiency, the safety and the energy utilization efficiency are improved.
Owner:BEIJING SOJO ELECTRIC CO LTD

Light, storage and firewood integrated container

ActiveCN224178116Ureduce cross-interferenceMaximize utilization of standardized transportation spacePhotovoltaic supportsSubstation/switching arrangement detailsThermodynamicsElectrical battery
The utility model relates to the technical field of energy equipment, in particular to a light, storage and firewood integrated container which comprises a container body, partition plates are arranged in the container body, and the interior of the container body is divided into an energy storage battery chamber, a diesel generator chamber and a photovoltaic storage chamber through the partition plates. A diesel generator is arranged in the diesel generator chamber, an installation support used for installing energy storage components is arranged in the energy storage battery chamber, a photovoltaic support is arranged in the photovoltaic storage chamber, a photovoltaic panel is installed on the photovoltaic support, and a rotation adjusting mechanism is arranged between the photovoltaic support and the container body. The interior of the container body is divided into the energy storage battery chamber, the diesel generator chamber and the photovoltaic storage chamber by arranging the partition plates, and the space in the container body is reasonably divided; and the rotation adjusting bracket is arranged to rotate the photovoltaic bracket and adjust the angle, so that the angle adjusting range is widened, the photovoltaic panel is more effectively contacted with sunlight, and the use convenience is improved.
Owner:ANHUI ZHONGDIAN XINGFA & XINLONG TECH CO LTD

Robot battery mounting device

The invention provides a robot battery mounting device, which comprises a base, a charging cabinet is fixedly mounted at the top of the base, placing chambers are uniformly distributed on the front surface of the charging cabinet, AGV robots are placed in the placing chambers, and a recovery unit is fixedly mounted on the base on one side of the AGV robots; the output end of the recycling unit extends into the containing chamber and is in butt joint with the placed AGV robot, a containing frame is fixedly installed on the portion, on the other side of the AGV robot, of the base, a carrying tray used for switching installation is placed in the containing frame, and an installation unit is fixedly installed on the front side of the top of the base. And the AGV robot is located on the front side of the base. The air channel of the AGV robot is communicated with the spring connector, the flow guide channel is matched to achieve the dual functions of impurity cleaning and suction and battery air-cooling heat dissipation, the battery installation chamber provides a protection and installation space for the battery module, the surrounding type flow guide channel enables air flow to evenly flow through the battery chamber, efficient air-cooling cooling is achieved, and high-temperature aging of the battery is avoided.
Owner:ANHUI LEADWIN NEW ENERGY TECH CO LTD

Combine harvester

To provide a combine harvester capable of preventing breakage of a battery by suppressing movement of the battery during traveling of the combine harvester.SOLUTION: A storage chamber (31) for storing a battery (40) for supplying electric power to a starter of an engine (E) is formed below a floor (30) of a steering part (5), and a mounting member (51) for mounting the battery (40) is provided in the storage chamber (31). The front portion of the placement member (51) is fixed to the front 31A (side 31R) of the storage room (31), the right portion of the placement member (51) is fixed to the right 31R (side wall) of the storage room (31), the locking member (55) extending from the right wall (side wall) of the storage room (31) toward the battery (40) is provided, and the upper portion of the battery (40) is locked by the locking member (55).SELECTED DRAWING: Figure 8
Owner:ISEKI & CO LTD

Special fire extinguishing device for power supply facility battery room

ActiveCN309959254SProcess engineeringBattery room
1. Name of the product in this design: Fire extinguishing device for battery room of power supply facility. 2. Purpose of this design: This design is intended for use as a fire extinguishing device in the battery room of a power supply facility. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:浙江华神消防科技有限公司

Electric Power Tool

An electric power tool includes a main body section with a battery compartment into which a battery is inserted from above and covered by a cover; an electric work section at a front of the main body section that operates using battery power; a front handle positioned above the main body section and ahead of the battery compartment, including a first part extending in a crossing direction intersecting front-rear and up-down directions; and a rear handle extending rearward from the main body section, wherein the battery stored in the battery compartment protrudes above a virtual plane that contacts upper regions of both the front handle's first part and the rear handle.
Owner:YAMABIKO CORP

Mobile fluid pump unit with internal battery chamber

PCT designated stageWO2026079959A1Positive displacement pump componentsFloorsElectrical batteryBattery room
Mobile fluid pump unit (1) comprising a bottom construction (10), a machine housing (50) on the bottom construction (10) that bounds a machine room (53), and inside the machine room (53) a fluid pump (101) and an electric motor (105) for driving the fluid pump (101), wherein the bottom construction (19) comprises a bottom container (11) with an internal battery chamber (17), an electric battery pack (106) with a battery pack top side (108) in the internal battery chamber (17), and a bottom shell (60) that covers the battery pack top side (108) and that bounds a bottom of the machine room (53), wherein the bottom shell (60) comprises a shell bottom wall (61) that extends above the battery pack top side (108), and that merges into a fluid collecting gutter (67), wherein the fluid collecting gutter (67) comprises a gutter bottom wall (65) that extends along the electric battery pack (106) and below the battery pack top side (108).
Owner:B B A PARTICIPATIES

Process of hydrogen gas scrubbing from battery room exhaust gases

The hydrogen removal scrubber utilises a catalyst bed and is a specialised system designed to efficiently remove hydrogen from a gas stream. The catalyst bed may be a hydrogen scavenger or hydrogen pu
Owner:LAKHANKAR KANTIKUMAR +1

Mobile energy storage cabin based on semitrailer platform

The utility model provides a mobile energy storage cabin based on a semitrailer platform, which belongs to the technical field of mobile energy storage and comprises a box body, a battery chamber is arranged in the middle of the box body, a high-voltage box is mounted at the bottom of the battery chamber, and a battery pack electrically connected with the high-voltage box is mounted above the high-voltage box. A PCS chamber is arranged at the head of the box body, an energy storage converter is arranged in the PCS chamber and electrically connected with the high-voltage box, and a confluence control and fire protection chamber is arranged between the PCS chamber and the battery chamber; a cable reel chamber is arranged on the lower side of the tail of the box body, a cable reel is arranged in the cable reel chamber, a cable on the cable reel is electrically connected with the energy storage converter, and a liquid cooling unit chamber is arranged above the cable reel chamber. The beneficial effects are that the energy storage unit is high in independence, the independent battery pack is sufficient in capacity, and bidirectional energy transmission is supported. A bidirectional reversible energy transmission channel is constructed, and the scene adaptability is excellent.
Owner:SHANDONG ELECTRIC TIMES ENERGY TECH CO LTD

Apparatus and method for manufacturing secondary battery with enhanced electrolyte impregnation

An apparatus for manufacturing a secondary battery includes an impregnation chamber including a first pressure chamber and a second pressure chamber, the first pressure chamber being configured to accommodate a first gas room of the secondary battery, the second pressure chamber being configured to accommodate a second gas room of the secondary battery, and the secondary battery including a cell room accommodating an electrode assembly with an electrolyte, and a pressure generator, the impregnation chamber being configured to have magnitudes of internal pressures of the first pressure chamber and the second pressure chamber changeable by the pressure generator, such that the electrolyte accommodated in the secondary battery flows between the first gas room and the second gas room and the electrode assembly accommodated in the cell room of the secondary battery is impregnated with the electrolyte.
Owner:SAMSUNG SDI CO LTD

Fuel cell system and single power generation device

The invention provides a technology capable of preventing the concentration of fuel gas at the position of an ignition source from increasing even if leakage of the fuel gas occurs in a fuel cell system, or a technology capable of easily realizing optimization of heat balance in the fuel cell system, or a technology capable of appropriately performing ventilation in the fuel cell system. An exemplary fuel cell system is provided with a case having: a fuel cell chamber in which a fuel cell module is disposed; and an electrical installation chamber which is separated from the fuel cell chamber and in which a plurality of electrical devices are arranged. The housing is provided with a fuel cell chamber ventilation path through which the fuel cell chamber is ventilated, and a plurality of electrical installation chamber ventilation paths through which the electrical installation chamber is ventilated. Furthermore, the housing has a ventilation path for internal ventilation, an inlet of the ventilation path is provided in a side surface of the housing, and an outlet of the ventilation path is provided in an upper surface of the housing.
Owner:YANMAR HLDG CO LTD

Modularized lithium ion battery energy storage cabin

ActiveCN224096839UMonitor abnormal situations in a timely mannerRealize ventilationCell component detailsElectrical batteryCooling chamber
The utility model relates to the technical field of energy storage, in particular to a modularized lithium ion battery energy storage cabin which comprises a cabin body, a battery chamber and an equipment chamber are arranged in the cabin body, a partition plate is arranged between the battery chamber and the equipment chamber, and the battery chamber comprises a plurality of battery racks distributed in the length direction of the cabin body. Two groups of battery clusters can be placed on each battery rack along the height direction of the cabin body, each group of battery clusters comprises a plurality of battery modules, and all the battery clusters are equally divided into two sets of battery stacks; a high-voltage box guide rail for mounting a high-voltage box is arranged below each battery rack, and a high-voltage box cover plate is arranged between the battery rack and the high-voltage box guide rail of the high-voltage box; the equipment chamber is located on one side of the cabin body in the length direction, the side, located on the cabin body in the length direction, of the equipment chamber is open, and the equipment chamber is divided into a liquid cooling chamber and an electrical chamber in the width direction of the cabin body. The modular design of one rack with two clusters and one cabin with two stacks is adopted, the spatial layout is reasonable, and the expansibility, compatibility and environmental applicability are high.
Owner:SHANDONG ELECTRIC TIMES ENERGY TECH CO LTD

Cell frame, electrochemical cell and electrochemical flow reactor

PendingJP2026502295ARegenerative fuel cellsElectrical batteryBattery room
The present invention describes and illustrates a cell frame (4) for an electrochemical flow reactor (1), particularly for a redox flow battery, the cell frame (4) circumferentially surrounding at least one cell chamber (5), the cell frame (4) having at least one flow channel (13, 14) connected to the at least one cell chamber (5) for supplying fluid to the cell chamber (5) and / or removing fluid from the cell chamber (5), the at least one flow channel (13, 14) having at least one deflection section (17) with a bend (18) for deflecting the fluid flow, particularly by at least about 90°, the flow channel (13, 14) having, successively in the fluid flow direction, an inlet region (19), a deflection region (20), a vortex region (21), and an outlet region (22), the fluid flow directions (R1, R2) in the inlet region (19) and the outlet region (22) being oriented at least substantially opposite to each other. Here, in order to avoid undesirably high pressure losses along the flow channels, the flow cross-sectional area (QW) of the flow channels (13, 14) in the vortex region (21) is configured to be larger than the flow cross-sectional areas (QE, QA) in the inlet region (19) and outlet region (22).
Owner:FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV

Energy storage system

The embodiment of the utility model provides an energy storage system. The energy storage system comprises a battery box support and a plurality of container bodies. A plurality of battery chambers are arranged on the battery box bracket, and a clamping groove with an opening facing one side of the width direction of the battery box bracket is formed in the battery box bracket; the plurality of container bodies are arranged in the battery chamber in a one-to-one correspondence manner; the container body comprises a container main body cover and a battery box bottom plate, the container main body cover is arranged on the battery box bottom plate to define a containing cavity used for containing a battery module, and the end, in the width direction of the battery box support, of the battery box bottom plate extends out of the container main body cover; and one end of the battery box bottom plate is provided with a guide part, and the guide part is clamped in the clamping groove in a sliding manner. The energy storage system provided by the embodiment of the utility model has the advantages that the operation loss is reduced, and the convenience of mounting the battery box is improved.
Owner:XIAOGAN CORNEX NEW ENERGY INNOVATION TECHNOLOGY CO LTD

Station building type energy storage power station

The application relates to the technical field of electrochemical energy storage, in particular to a station building type energy storage power station, which comprises a plurality of battery chambers and a heating assembly. The plurality of battery chambers are divided into a plurality of battery chamber groups, the plurality of battery chamber groups are arranged at intervals in a first direction, each battery chamber group comprises a plurality of battery chambers which are sequentially connected in a second direction, the second direction is orthogonal to the first direction, the heating assembly comprises a heating interlayer and a heating part, one end of the heating interlayer is connected with one of two adjacent battery chambers in the second direction, the other end of the heating interlayer is connected with the other of the two adjacent battery chambers in the second direction, and the heating part is arranged in the heating interlayer. The application provides the station building type energy storage power station, and the heating effect can be improved.
Owner:HUANENG SHAANXI JINGBIAN ELECTRIC POWER CO LTD +2

A cutting and conveying mechanism for waste battery cell cutting equipment

This utility model discloses a cutting and conveying mechanism for waste battery cell cutting equipment, belonging to the field of waste battery recycling technology. It includes a conveyor cart, a vertical lifting mechanism, a horizontal pushing mechanism, a transfer platform, and a material handling robot. The conveyor cart has an opening at the top, and its interior is divided into a drive chamber and a waste battery chamber by a partition. The vertical lifting mechanism includes a lifting plate movably mounted in the waste battery chamber for stacking waste batteries. The horizontal pushing mechanism is located at the top of the drive chamber. The transfer platform is positioned between the conveyor cart and the waste battery cell cutting equipment. The material handling robot is mounted on the transfer platform. This utility model enables the entire conveying process to be completed without manual intervention, avoiding the risk of workers being scratched by the battery edges or burned by electrolyte when manually fixing waste batteries, ensuring worker safety, and also improving conveying efficiency.
Owner:安徽巡鹰再生资源利用有限公司

An air conditioning and ventilation system for ship energy storage battery rooms

ActiveCN224458257Ureduce loadreduce cooling capacityTemperature controlElectrical battery
This utility model discloses an air conditioning and ventilation system for a ship's energy storage battery compartment, including a fresh air component, a temperature control component, an air supply component, a data acquisition component, and a control box. The air inlet of the fresh air component is connected to the outside, and the air outlet of the fresh air component is connected to the air inlet of the temperature control component. The air inlet of the air supply component is connected to the energy storage battery compartment, and the air outlet of the air supply component is connected to the outside. The control box is electrically connected to the fresh air component, the temperature control component, and the air supply component through the data acquisition component. The temperature control component includes two independent air conditioners, and the air supply ducts of the two independent air conditioners form a ring-shaped air conditioning air supply duct around the energy storage battery module. Multiple air supply outlets are spaced apart on the ring-shaped air conditioning air supply duct. The two independent air conditioners are electrically connected to the control box. This utility model's air conditioning and ventilation system for a ship's energy storage battery compartment can easily switch modes according to different scenarios, ensuring the normal and safe operation of the energy storage batteries on the ship.
Owner:CHINA MERCHANTS CRUISE RES INST (SHANGHAI) CO LTD

Battery energy storage device based on two-phase liquid cooling technology

The utility model provides a battery energy storage device based on a two-phase liquid cooling technology, the battery energy storage device is installed in an energy storage cabinet, the battery energy storage device is divided into four parts, the battery energy storage device comprises a battery chamber, the battery chamber is arranged at the right side of the lower part of the energy storage cabinet and comprises four battery modules; the electrical room is arranged on the left side of the energy storage cabinet and comprises a PCS, a DC / DC and a direct-current high-voltage box; the control room is arranged in the middle of the upper part of the energy storage cabinet and comprises an operation indicating lamp, an energy management system, an emergency stop switch, a refrigerator power switch and an energy management system control power switch; the cooling chamber is arranged on the right side of the upper part of the energy storage cabinet and comprises a two-phase liquid cooling unit; the two-phase liquid cooling technology is adopted, and efficient heat dissipation is achieved through the phase change heat absorption characteristic. The cooling pipeline is connected with the cold plate of the battery module in a bottom-feeding and top-returning manner, so that the cooling medium can fully absorb the heat of the battery module, a large amount of heat is taken away through the phase change process, and the heat exchange efficiency is improved.
Owner:STATE GRID ENERGY CONSERVATION SERVICE

Image pickup apparatus with high heat dissipation performance

An image pickup apparatus having high heat dissipation performance. The image pickup apparatus comprises a board having an image pickup device, a sheet metal member disposed closer to a front surface side than the board and adjacent to the board in an optical axis direction, an electronic component board disposed closer to a back surface side than the board, and a battery chamber disposed near an outer edge of the board. The sheet metal member is thermally connected to the board, and includes an arm, which is formed integrally with and made of the same material with the sheet metal member. The arm extends in the optical axis direction toward the back surface side, to a position closer to the back surface side than the board, and is disposed at a position closer to the optical axis than the battery chamber.
Owner:CANON KK

Electrolyte for low-temperature lithium battery

The invention relates to the technical field of lithium battery low-temperature electrolytes, in particular to an electrolyte for a low-temperature lithium battery. The electrolyte comprises a multi-component solvent composed of a chain carbonate solvent, a carboxylic ester solvent and a heterocyclic compound solvent, a multi-component solute composed of an imide lithium salt, a boron-containing lithium salt and a fluorine-containing lithium salt, and an additive composed of nitrate and fluoro-carbonate, the preparation method comprises the following steps: firstly, mixing a multi-component solvent according to a volume ratio, then adding a multi-component solute into the multi-component solvent one by one, finally adding an additive, and magnetically stirring at 25 DEG C for more than 2 hours until the multi-component solute is completely dissolved to form a homogeneous solution; the electrolyte disclosed by the invention shows high ion transmission and interface stability at low temperature by utilizing the synergistic effect of the multi-component solvent, the multi-component solute and the additive, and meanwhile, the working temperature range is widened, the ionic conductivity is improved, the low-temperature discharge capacity is improved, and the room-temperature service life and the low-temperature service life of the battery are prolonged.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

A co-crystal electrolyte, a preparation method and application in a secondary battery

The present application relates to a kind of eutectic electrolyte, preparation method and application in secondary battery, eutectic electrolyte includes: lithium salt or sodium salt and sulfuric acid ester-containing compound;The mass ratio of lithium salt and sulfuric acid ester-containing compound is 1:1~1:10;The mass ratio of sodium salt and sulfuric acid ester-containing compound is 2:5~3:5;Eutectic electrolyte is the eutectic mixture formed by lithium salt or sodium salt and sulfuric acid ester-containing compound by hydrogen bond interaction;The ionic conductivity of eutectic mixture is greater than 10 ‑4 S / cm at room temperature;Since the eutectic electrolyte provided by the present application has high ionic conductivity, wide electrochemical window and other excellent electrochemical properties, the eutectic electrolyte of the present application is applied to secondary battery, has good cycle performance and rate performance at room temperature, and the interface is stable.In addition, eutectic electrolyte also has low volatility and flame retardancy, has excellent safety.
Owner:INSTITUTE OF PHYSICS CHINESE ACADEMY OF SCIENCES

Diaper accumulator

Lead-acid battery in which at least one electrode plate group, configured such that a plurality of positive electrode plates and a plurality of negative electrode plates are stacked on top of each other, wherein a separator is arranged between adjacent positive and negative electrode plates, is housed together with an electrolyte in at least one cell chamber, where each positive electrode plate includes a positive electrode grid made of lead or a lead alloy that does not contain antimony, a positive electrode surface layer formed on a surface of the positive electrode grid and consisting of an antimony-containing lead alloy, and a positive electrode active material with which the positive electrode grid is filled and which includes lead oxide, Each negative electrode plate contains a negative electrode grid made of lead or a lead alloy that does not contain antimony, a negative electrode surface layer formed on a surface of the negative electrode grid and consisting of an antimony-containing lead alloy, and a negative electrode active material with which the negative electrode grid is filled and which includes lead oxide, NS / PS falls into a range of 0.3 to 0.8, where PS represents an area of ​​the positive electrode surface layer on the surface of the positive electrode grid and NS represents an area of ​​the negative electrode surface layer on the surface of the negative electrode grid, and The positive and negative electrode surface layers consist of a Pb-Sb-based alloy containing antimony at a content of 1.0 to 5.0 wt%.
Owner:GS YUASA INT LTD

Diaper accumulator

Lead-acid battery including: a positive plate electrode (1) with a positive electrode mesh (1a) and a positive, active electrode material (1b); a negative plate electrode (2) with a negative electrode mesh (2a) and a negative active electrode material (2b); a plate electrode group (4) comprising the positive plate electrode (1), the negative plate electrode (2), and a separator (3) placed between the positive plate electrode (1) and the negative plate electrode (2); a battery casing (5) containing a plurality of cell chambers (5a), each of which contains the plate electrode group (4) and an electrolyte; and a lid (6) which closes an opening of the battery housing (5); The ratio P / N of the mass P of the positive, active electrode material (1b) to the mass N of the negative, active electrode material (2b) is between 1.25 or more and 1.65 or less. the negative electrode network (2a) contains bismuth in an amount of 1 ppm or more and 300 ppm or less.
Owner:GS YUASA INT LTD

Fuel cell system, its operating method, and heated air circulation method

Before the fuel cell is activated, the air in the battery chamber is heated to melt any frozen water. [Solution] The fuel cell system 100,200 comprises a battery chamber 60 defined by partition walls 11-16, a fuel cell 1 installed in the battery chamber 60, ducts 20a,20b communicating with the battery chamber 60 through at least one opening 11a,13a and the other opening 11b,13b provided in partition partition walls 11,13 of the partition walls 11-16, and a preheater 3 that supplies heated air. At least the battery chamber 60, one opening 11a,13a and the other opening 11b,13b, and the ducts 20a,20b constitute warm air circulation paths 30A,30B for heated air supplied from the preheater 3.
Owner:NIPPON FILCON CO LTD

A ptc safety coating and its preparation method and application

This invention discloses a PTC safety coating, its preparation method, and its application, belonging to the field of lithium-ion battery technology. The PTC safety coating comprises, by weight, 30-50 parts of PTC polymer material, 30-50 parts of ion conductor, 1-5 parts of conductive agent, 2-15 parts of aqueous binder, 0.1-0.8 parts of dispersant, 0.01-0.1 parts of wetting agent, and 80-90 parts of water. The PTC safety coating of this invention includes PTC polymer material and ion conductor. The PTC material significantly improves the thermal stability and thermal safety performance of the battery; at a certain temperature, its internal resistance increases significantly, thereby cutting off the current and suppressing thermal runaway. The ion conductor increases the conductivity of the coating, compensates for the poor conductivity of the PTC material causing electron transfer impedance and high coating impedance, alleviates battery room-temperature polarization, reduces internal resistance loss, and avoids deterioration of cycle performance.
Owner:GANZHOU NOVA TECH CO LTD

Fuel cell system, its operating method, and heated air circulation method

Before the fuel cell is activated, the air in the battery chamber is heated to melt any frozen water. [Solution] The fuel cell system 100,200 comprises a battery chamber 60 defined by partition walls 11-16, a fuel cell 1 installed in the battery chamber 60, ducts 20a,20b communicating with the battery chamber 60 through at least one opening 11a,13a and the other opening 11b,13b provided in partition partition walls 11,13 of the partition walls 11-16, and a preheater 3 that supplies heated air. At least the battery chamber 60, one opening 11a,13a and the other opening 11b,13b, and the ducts 20a,20b constitute warm air circulation paths 30A,30B for heated air supplied from the preheater 3.
Owner:NIPPON FILCON CO LTD