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　　With the continuous development of science and technology and the DIY concept being gradually accepted by people, the application scope of electric tools has also been greatly developed. Many traditional manual tool operation fields have begun to be replaced by electric tools. Electric tools are also expanding from industrial applications to home applications and life. According to relevant data, the demand for electric tools is increasing year by year;

　　According to industry data, last year, the global market size of electric tools reached 31.8 billion US dollars, equivalent to about 225 billion yuan. Based on the 5.5 percentage points of the annual compound growth rate, by 2024, the global market size of electric tools can reach 41.7 billion US dollars, equivalent to about 295 billion yuan;

　　Electric tools are gradually moving towards the direction of miniaturization and convenient carrying, and lithium batteries are more and more widely used in electric tools. The future electric tools are a blue ocean market with large-scale application prospects for lithium batteries;

　　Lithium batteries have many advantages, so they are slowly replacing nickel cadmium batteries. Compared with nickel chromium batteries, lithium batteries are lighter, have larger capacity, and have higher discharge efficiency. In addition, lithium iron phosphate batteries have certain advantages as batteries for electric tools. Their high temperature resistance performance will be better than other lithium batteries, and they can achieve discharge performance above 30C, The effect is very ideal in the environment of normal temperature and wide temperature. Compared with nickel metal hydride battery, its low temperature performance and energy density will be better, and its service life will be longer than that of nickel metal hydride battery. Therefore, lithium battery has become a popular product or a preferred product for end users in the electric tool market;

　　The biggest trend in the field of motor drive and control is to use brushless DC motors and their controllers. Among electric tools, the application of brushless DC motor drive and control technology is still a key node for continuous improvement;

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