Research And Implementation Of Low-temperature Smart Battery System

Remote measuring instrument working in the field often require batteries1year orlonger. In order to prevent the instrument being forced to shutdown due to low voltage,it needs to replace the battery regularly. Lithium-ion batteries due to its high energyratio, smooth discharge platform and non-memory effect are especially suitable forapplication in long-term online remote measuring equipment. However, thedeterioration of cell performance under low temperature has been a very difficultproblem. Low temperature in short cold winter making many of the normal operation ofthe instrument can be forced to shutdown. Due to the battery voltage attenuationunpredictability has greatly increased the workload and improved the equipmentmaintenance cost.Aiming at the problems above, this paper proposes a smart battery system solutionwhich is designed for application in the field of northern condition of low temperatureenvironment. To prolong the service life of batteries and get accurate information aboutthe electricity metering accuracy, the scheme adopts the method of reducing the powerconsumption of the battery management system and improving the capacity of batterymanagement system, so that it can replace the battery with more purpose and minimizethe workload as well as optimize equipment maintenance work.Smart Battery internal embedded microcomputers and function can be tailoredaccording to the actual needs to optimize the system resource configuration. The articleillustrated design ideas around modules of smart battery. Key elements can be dividedinto the following four parts: The first part discusses the structure and working principleof the charging and discharging of lithium. It Analysis effect factors of the battery inlow temperature and describes the causes of performance differences between batteriesand low battery and determines the low battery used in this topic. The second partanalyzes the major components of intelligent battery and their respective functions. Thethird part mainly introduces the detailed design process of software and hardware,including the selection of chips, formula and calculation, circuit design, the top andbottom design of software. The fourth part, a detailed description of the testing processabout intelligent battery systems was toke and all design needs were verified. Finally,the article carefully analyzed experimental data and summarized the experimentalresults.