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In recent years, with the rapid development of the global economy, the infrastructure construction of various countries has become more and more perfect. Street lamps, as outdoor lighting equipment, have also moved from cities to rural areas, which greatly facilitates the daily lives of urban and rural residents. Careful friends may also have discovered that solar street lights can be seen everywhere and become the main force of outdoor lighting. So, why did solar street lights develop so fast and become the main force of outdoor lighting? Today, we will take a closer look.
There are five main reasons why solar street lights are so popular: One is energy saving. As we all know, solar street lights use solar power to convert sunlight into electrical energy for lighting, which reduces our consumption of traditional electricity and saves a lot of electricity for the country every year. Energy-saving and emission-reduction is the general trend, so it has been strongly supported and promoted
Solar garden lights use solar radiant energy as energy. Solar panels are used to charge the battery during the day, and the battery powers the courtyard light source at night. There is no need for complicated and expensive pipeline laying. The layout of the lights can be adjusted arbitrarily, which is safe, energy-saving and pollution-free, charging and opening. The /off process adopts intelligent control, light-controlled automatic switch, no manual operation, stable and reliable work, saving electricity bills, and maintenance-free.
Typical lamp holders are 6w and 9w, and the maximum power is 12w, applicable to courtyards, parks, and playgrounds.
The solar garden lighting uses CCFL inorganic tube with the power equivalent to 70W incandescent lamp, the lamp post is 3m high, and the tube life is more than 20,000 hours; the power
Lithium battery price configuration
the price of lithium battery is mainly composed of three main components: battery unit, protective plate and shell, which consume the power and current of electrical appliances at the same time, the materials of connecting plate (traditional nickel plate, formed nickel plate), copper nickel composite plate, jumper plate, etc.) will affect the cost, and other connectors (such as aviation plug, from tens of yuan to thousands of yuan) It may also have a great impact on the cost. Other pack processes also affect costs.
factors affecting the price of lithium battery
select the battery first:
first, the selection of batteries in different material systems will affect the price of the whole lithium battery. Lithium batteries have lithium manganate (3.6V), lithium cobalt (3.7V / 3.8V), lithium nickel cobalt manganate (usually
Advantages of 26650 lithium iron phosphate battery
High energy density: the theoretical specific capacity is 170mAh / g, and the actual specific capacity is ≥ 140 MAH / g (0.2C, 25 ° C);
High safety: the safest cathode material for lithium ion battery at present;
No pollution: it does not contain any heavy metal elements harmful to human body;
Long cycle life: it can charge and discharge more than 2000 times under the condition of 100% DOD;
Fast charging performance: lithium battery with lithium iron phosphate cathode material can be charged at a high rate.
Power to 0V. Observe the appearance change of the battery. Result: no fire, no explosion
3. External short circuit
After the standard charging of the battery, measure the initial state of the battery, place it in the explosion-proof cover and directly short-circuit its positive and negative electrodes (the total resistance of the line is not greater than 50m Ω). When the battery temperature drops to about 10
16 lithium battery equipment enterprises divide 19 billion orders
According to public data, from January to August 2021, China's power battery output accumulated 111.5gwh, a year-on-year increase of 201.0%; The cumulative loading volume was 76.3gwh, a year-on-year increase of 176.3%.
Behind the double increase of power battery output and loading volume is the "rush" mode of battery manufacturers to expand production. According to statistics, in the first half of 2021, the newly planned battery capacity of major domestic enterprises reached 745gwh, which was conducted layer by layer. Since this year, the lithium battery equipment market has also ushered in a period of rapid development.
According to the above planned capacity of 745gwh, if the investment amount of key equipment with single GWH capacity is 150 million yuan, the corresponding investment amount of lithium
The high-power portable UPS mobile power supply makes outdoor power use not panic. In outdoor life, it is an indisputable fact that it is difficult to obtain electricity, especially some field power facilities, because of the lack of fixed power supply system, which can not meet the shortcomings of long-term outdoor use. In order to effectively deal with emergencies, various portable emergency mobile power supplies are more and more used in practice.
High power portable UPS mobile power supply makes outdoor power use unnecessary
What about long-term outdoor power consumption? Power supply is also an important issue for outdoor activities, such as outdoor self driving tour, outdoor camping, emergency rescue, outdoor survey, outdoor operation, fire rescue and other power fields. The service voltage of such electrical appliances is 220V. General mobile power supply may not drive such high-power equipment.
At present, the outdoor portable mobile power supply market is surging, multiple