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09

2022-09

Is lithium battery better than ternary or lithium iron phosphate? Advantages and disadvantages of lithium iron phosphate battery and ternary lithium battery

Ternary lithium batteries and lithium iron phosphate batteries each have their own advantages. In the case of similar prices, you can choose according to the vehicle environment. If the local climate is relatively cold, then choose ternary lithium battery. Because the low temperature performance of the ternary lithium battery is good, even in the weather of minus 20 degrees, the heating performance can still reach more than 70%. On the contrary, if the local climate is relatively hot, then you can choose lithium iron phosphate batteries. Because the lithium iron phosphate battery has good heat resistance, the thermal runaway temperature can reach more than 800 degrees, and spontaneous combustion will not occur in hot areas. The thermal runaway temperature of lithium batteries is only about 200 degrees, which is dangerous for hot areas. As for the service life, the lithium iron phosphate battery will indeed be longer than the ternary lithium battery, but there is no need to worry about it. Because for family cars, whether it is a ternary lithium battery or a lithium iron phosphate battery material, the rated life of the power battery is far from the actual user's habits. The advantages and disadvantages of lithium iron phosphate batteries and ternary lithium batteries 1. Energy density: The energy density of ternary lithium is about 1.7 times that of lithium iron phosphate, so the volume and weight of ternary lithium batteries will be smaller than that of lithium iron phosphate batteries, and the car load will be smaller. 2. Safety performance: Lithium iron phosphate batteries will perform better in the acupuncture test, and in high temperature environments, the stability will be much better than ternary lithium batteries, which also means that the natural proportion of ternary lithium batteries Larger. 3. Service life: In the process of power decay from 100 to 80%, the charge and discharge cycle life of lithium iron phosphate battery can reach more than 3500 times, while that of ternary lithium battery is only about 2500 times. And under the same number of cycles, the remaining capacity of the lithium iron phosphate battery will be more than that of the ternary lithium battery. 4. Low temperature performance: The limit working temperature of lithium iron phosphate battery is minus 20 degrees, while the ternary lithium battery is minus 30 degrees, and in the same low temperature environment, the attenuation of lithium iron phosphate battery will be higher than that of ternary lithium battery.

2022-09-09

09

2022-09

China will build the world's largest railway station, planning an area equivalent to 30 Tiananmen Square, just in Guangzhou

China will build the world's largest railway station, with a planned area equivalent to 30 Tiananmen Square. Guangzhou Railway Station is already an indispensable part of people's daily life. As a project that can not be ignored in urban traffic, each city has its own station. With the improvement of our aesthetic demand, I don't know if you have found that the stations built in recent years have a strong design color. After all, the station can be said to be the "card face" of a city, and it is the first impression of the city by people who come to the city for the first time. Therefore, many stations are now buildings with a sense of style and design. While magnificent, they are also impressive and amazing. Today I want to introduce you to the world's largest railway station, surpassing the original New York Railway Station. It will be built soon. So do you know which is the biggest train station in the world right now? It's in New York, USA. We can see this Grand Central Station in many movie shots and American introductions. In fact, in addition to being able to carry a large number of traffic-intensive passengers, its modeling style and aesthetic construction are also very distinctive. You know, this station was not built in recent years, it was completed as early as 1913. It is now like a huge public art space, and you can feel the fashion elements everywhere in the station. However, the current 190000-square-meter floor area and passenger throughput data of Central Station will soon be replaced by another railway station, and its position as the world's number one station will also be given up. It will be replaced by a brand-new railway station under construction in China: Guangzhou New Station. The huge station was designed by a British architect, Terry Farrell, who is also the designer of Beijing South Railway Station. According to the data that has been disclosed now, the planned area of the new station is a bit scary, with 11.4 million square meters, which is equivalent to 30 Tiananmen Square. Just a fraction is ten times larger than the Central Station. The site of this station is located in Shibi, Panyu. Now it is called the new station because the specific name has not been determined. As the world's largest station, construction and cost is also very huge, construction investment is expected to be around 13 billion. After completion, it will be one of the most important transportation hubs in the entire Zhuhai play economy region. If you want to take the train from Guangzhou, there are five subways to the station in the city. If you drive, there are also expressways that go straight to the station, which can be said to be very convenient. The theoretical annual tourist volume of this station is as high as 0.17 billion million, which is more than the population of Guangdong Province. After it is completed, it will greatly ease the passenger pressure of other stations in Guangdong. For our country, this station also has a certain strategic significance. According to the disclosure, it will take about 10 years to build the station. Ten years of such a huge project is not very slow. You know, it took 10 years for the Central Station to be built. I believe that ten years later, when the station is completed, there will be a new atmosphere. Have you been to Guangzhou? What impression has this super first-tier city left on you? Looking forward to the new Guangzhou station in the future?

2022-09-09

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