5 results about "Lithium polymer battery" patented technology

The invention relates to a method for preparing a lithium iron phosphate / carbon composite material of a lithium ion battery, which belongs to the technical field of lithium ion batteries. The method for preparing the lithium iron phosphate / carbon composite material of the lithium ion battery comprises the following steps of: 1) preparing a suspending graphene-dispersed aqueous solution system, namely, crushing graphite to 1 to 5 microns, adding the crushed graphite into distilled water or purified water, adding 0.1 to 5 percent of surfactant, heating with stirring the mixed solution to 180 to 250 DEG C in a sealing way, performing stirring for 2 to 6 hours and reducing the temperature; 2) crushing lithium iron phosphate to the particle size of 1 to 5 microns, adding the crushed lithium iron phosphate into the distilled water or the purified water, adding with stirring 0.01 to 1 percent of coupling agent, performing uniform stirring, adding the graphene-dispersed aqueous solution, and performing stirring and filtration; and 3) vacuum-drying solid powder obtained by the filtration, and calcinating the dried solid powder for 2 to 12 hours to obtain the graphene-coated lithium iron phosphate cathode material. The method has the advantages of simple process, high material performance, high conductivity, high bulk density, high compacted density and the like.

The utility model discloses an eight-segment brocade motion identification auxiliary device based on multi-modal data fusion, which comprises a wearing bandage, an integrated module, a power supply module, a feedback module and an image analysis module, the wearing bandage is provided with a magic tape, a mounting cavity and a buffer layer are arranged in the wearing bandage, and the integrated module comprises a nine-axis attitude sensor, a data processing unit and a Bluetooth unit. The motion data can be collected, processed and sent to an external terminal, the image analysis module is composed of a camera and a processor and can capture motion images, position joint points and calculate the similarity with standard motion, the power supply module is a bendable lithium polymer battery, and the feedback module is provided with a vibration unit and a terminal graphical interface and achieves tactile and visual feedback. And the data processing unit and the image analysis module synchronize data through Bluetooth and fuse the data to generate a comprehensive evaluation result. In use, the device can assist a user in accurately identifying eight-segment brocade actions, provides comprehensive action evaluation through multi-modal data fusion, helps the user to correct the actions in time, and improves the exercise effect.

The invention relates to a fire extinguishing agent for extinguishing and preventing fire disasters of a lithium ion battery and a lithium ion polymer battery and a preparation method of the fire extinguishing agent, and the fire extinguishing agent can prevent a thermal runaway phenomenon when the lithium battery is on fire and realize rapid and effective fire extinguishing. More specifically, the present invention comprises deionized water and vanadium oxide. According to the invention, the components are mixed according to a specific proportion, so that high temperature and after-combustion risks when the lithium battery is on fire can be reduced, and harmful gases can be reduced to the greatest extent when the electric vehicle is on fire, so that the risk of secondary fire and explosion is reduced.

The invention relates to the technical field of emergency signal equipment, in particular to a multifunctional electrical control emergency annunciator which comprises an equipment body, a control module, an emergency alarm module and a power supply module are arranged in the equipment body, and a lighting indication module and a control module are arranged outside the equipment body. The control module is electrically connected with the emergency alarm module, the power supply module, the illumination indication module and the control module. The control module adopts a mobile phone APP remote control mode, a handheld wireless remote control mode and a physical three-control switch control mode; the emergency alarm module comprises an electrical horn, and three preset alarm modes are built in the electrical horn; the power supply module is a rechargeable lithium polymer battery and has a quadruple protection function, and all the modules cooperate together. The problem that a traditional device is single in function is solved, diversified requirements in an emergency scene can be met, close-distance, long-distance, automatic and manual all-directional control coverage is achieved, and emergency response efficiency is improved.

The utility model discloses a lithium polymer battery with high energy and low cost, which belongs to the technical field of batteries and comprises a battery case and a sealing cover mounted on the battery case, a positive tab is inserted into one end of the sealing cover, a negative tab is inserted into the other end of the sealing cover, and the lower ends of the positive tab and the negative tab penetrate into the battery case. The liquid electrolyte filled in the battery shell is replaced by the polymer electrolyte, and the polymer electrolyte is in a solid state or a gel state during use and does not contain liquid components, so that the problem of leakage of the battery can be solved, the safety and reliability of the battery are improved, the service life of the battery is prolonged, and the service life of the battery is prolonged. Therefore, the conversion of energy in the battery can be better utilized, the high-energy and low-cost use state of the battery is embodied, and the shape of the battery used by the polymer electrolyte is flexible and changeable and can be in a film shape, a flexible shape or any shape, so that the adaptability of the battery is enhanced.