ZhiHU | 知乎

Why don’t electric cars use super capacitors instead of lithium batteries? Why can supercapacitors be used as energy containers for large buses?

First, let’s briefly introduce supercapacitors. According to the energy storage mechanism, the most commonly used supercapacitors are electric double layer supercapacitors and Faraday pseudocapacitor supercapacitors. Electric double layer supercapacitor Commonly referred to as EDLC (electromechanical double layer capacitor) , its structure is similar to that of a lithium power battery, with a positive electrode/separator/negative electrode […]

Why don’t electric cars use super capacitors instead of lithium batteries? Why can supercapacitors be used as energy containers for large buses? Read More »

2022.6.1~2022.6.10 Analysis on the shallowness of the dragon boat in South China

Circulation analysis The mid-to-high latitude circulation is gradually transformed into a zonal circulation with weak cold air activity. Affected by the Japanese standing wave trough, it is difficult for the subtropical high to move northward, and the ridge line of the subtropical high is maintained at about 15N, and the point of the westward extension

2022.6.1~2022.6.10 Analysis on the shallowness of the dragon boat in South China Read More »

2022.6.1~2022.6.10 Analysis on the shallowness of the dragon boat in South China

Circulation analysis The mid-to-high latitude circulation is gradually transformed into a zonal circulation with weak cold air activity. Affected by the Japanese standing wave trough, it is difficult for the subtropical high to move northward, and the ridge line of the subtropical high is maintained at about 15N, and the point of the westward extension

2022.6.1~2022.6.10 Analysis on the shallowness of the dragon boat in South China Read More »

Creators please answer|That’s right: I walked into a “perfect murder” with words

In the Archives Bureau, we have invited criminal investigation experts and forensic doctors. They used their own experiences to take you through the thread and find the truth behind the case. You must have heard of the famous Tang Feng! In the writing of the author @Yes is me , the old criminal policeman Tang

Creators please answer|That’s right: I walked into a “perfect murder” with words Read More »

What do you think of the National Bureau of Statistics’ statement that “once the epidemic is effectively controlled, normal life order is restored, and pent-up consumer demand will be released quickly”?

I have done a lot of research on the impact of the epidemic and consumption, and the conclusions are probably as follows: 1. The suppression of local consumption by the epidemic will last twice to three times as long as the epidemic itself. The above data is made using the Difference in Difference method, which

What do you think of the National Bureau of Statistics’ statement that “once the epidemic is effectively controlled, normal life order is restored, and pent-up consumer demand will be released quickly”? Read More »

The central bank said that the increase in social financing in April 2022 will be 910.2 billion yuan. What does this data show?

From the point of view of a bank’s grass-roots employees, social financing has dropped sharply I am a basic bank employee. I have worked in the bank for more than 7 years and have been in the personal loan business for three years. Last year, I left the personal loan business line and joined the

The central bank said that the increase in social financing in April 2022 will be 910.2 billion yuan. What does this data show? Read More »