About needle lithium battery CR425 explain the development of the technology

Source: 2020 - 04 - 14 to 20:00 hits: needle lithium battery CR425 research abstract: using Li - MnO2 battery materials, manufacturing process for CR425 lithium battery. Focus on the positive active material processing preparation and battery assembly process was tested and improved. By XRD test before and after the heat treatment of electrolytic manganese dioxide ( EMD) Preparation of battery structure, constant current and constant resistance discharge under different temperature, storage 1 week, 3 months and 6 months of battery open circuit voltage, short circuit current, resistance and discharge capacity was tested. The results show that the battery performance fully meet the requirements of type CR425 lithium battery, can be used as night fishing with luminous buoys, also can be used as business writing in the night with the luminous power. With the rapid development of electronic industry, the battery is called the heart of the electronic products, in the national economy development and is playing an increasingly important role in people's life. Li- Mno2 battery has high voltage, high energy density, wide working temperature range, storage performance is good and cheap raw material, widely used in various kinds of household appliances, industrial equipment and military equipment. Appear on the market at present with BR425 type needle type lithium ion battery of the light-emitting diodes, as an amateur fisherman fishing at night luminous buoys or commercial lighting power supply. When using battery cathode material is solid carbon fluoride ( Rank) N, provides the high specific energy, no gas evolution in the process of storage, self-discharge, safety performance is good, but provide solid carbon fluoride ( Rank) N than lee Summary is convenient and cheap electrolytic manganese dioxide batteries battery anode materials, production process and Li - Summary battery technology mature. Therefore, the author by the electrolytic manganese dioxide as positive pole material produced CR245 needle lithium-ion batteries, and the EMD, manufacturing process and battery assembly, such as testing, heat treatment on the battery performance was tested. ( 1) The EMD with internal heating type converter process. XRD test show that the EMD from MnO2 MnO2 changes of main phase as mixed phase mixed phase of MnO2, meet the demand of lithium manganese battery positive electrode active material. ( 2) Battery CR425 lithium battery using the EMD as the anode material. The battery at room temperature for 1 week, constant current zero. 5 mah, continuous discharge at 50 ℃, 20 ℃ discharge capacity reach or exceed the rated capacity. At 0 ℃ can release the 90% of the rated capacity, when in - 10 ℃ when can release the 70% of the rated capacity. Results 5 k Ω continuous constant resistance discharge and constant current discharge results are essentially the same. ( 3) Battery storage at room temperature, 3 to 6 months after the open circuit voltage and discharge platform voltage drop slightly, internal resistance increased significantly, and greatly reduce the short-circuit current, but constant current battery 0 at room temperature. 5 mah discharge can still release more than 98% of the rated capacity. ( 4) Use business communications and Po yu ding pen to buoy the efficiency of the investigation of the battery, battery continuous working time of 50 h and more than 20 h respectively.