Like it, it’s great! China has made a major breakthrough in the field of electric vehicles.

  Cctv newsThe 2022 Winter Olympic Games will be held in China, and the China government has once again made a promise of "Green Olympics". Around this goal, it is an important link to realize green transportation during the Olympic Games. On August 31st, Beijing Institute of Technology and other research teams released an achievement: the all-weather battery product was successfully developed, that is, the battery of electric vehicles can still work normally under all climatic conditions, including extreme low temperature.

  In the cold environment, electric vehicles will face challenges.

  After investigation, during the Beijing Winter Olympics, vehicles will face a low temperature of -20℃ to -30℃, and the use of new energy vehicles will face the following challenges ↓ ↓

  The charging and discharging characteristics of the power battery become worse!

  Battery capacity and life will also decay!

  These will lead to a significant decline in vehicle driving range and vehicle dynamic performance!

  Sun Fengchun, Director of the National Engineering Laboratory of Electric Vehicles of Beijing Institute of Technology and Chief Expert of the Expert Group of Beijing New Energy Vehicle Association:

  Now the electric vehicle (cruising range) has reached more than 300 kilometers, but it may only run for dozens of kilometers at MINUS 10℃.The farthest distance between the two venues of Beijing Winter Olympics, that is, the Chongli distance from Wukesong in Beijing to Zhangjiakou is 260 kilometers. How to last the electric vehicle at low temperature is a problem that must be solved.

  New technology, let electric vehicles break through the low temperature forbidden zone

  The team led by Professor Sun Fengchun developed the world’s first all-climate battery product by using the rapid thermal conductivity generated by metal heating inside the battery. The key technologies are as follows ↓ ↓

  A layer of nickel-platinum sheet was added to the existing lithium battery.

  Connect the power supply, and the battery can be heated quickly!

  Sun Fengchun:

  At MINUS 30℃, the temperature of our battery rises to above zero in twenty seconds, so it can work very well and has no influence on the life of the battery. This is the core technology. In other words, there is no forbidden area for electric vehicles, which is a milestone principle and technology in this respect.

  Low temperature environment, all the key technologies of new energy vehicles are overcome.

  In addition, key technologies such as vehicle system integration and control in low temperature environment have also made breakthroughs. The cooperative control technology of automatic driving and automatic charging has laid a solid foundation for the application of new energy vehicles during the Winter Olympics.

  Sun Fengchun:

  From the battery cell, battery system to the system integration of the whole vehicle, it should be said that the technology has been completely overcome.Our core key components are required according to the standard of low temperature of MINUS 45℃ to ensure that there will be no problems during the Winter Olympics.

  At the end of this year, all-weather electric vehicles will be launched.

  According to reports, the first batch of all-weather electric vehicles in the world will be released at the end of December this year, and then they will go to Mohe and other alpine regions for experiments at around MINUS 45 C. It is estimated that in 2020, the development of 11 product prototypes of four types of vehicles will be completed, and the demonstration operation will begin.

  Zhang Jihong, Deputy Director of Beijing Municipal Science and Technology Commission:

  We should further integrate some technologies from Beijing, China and even foreign countries to tackle key problems in Industry-University-Research. Whether it is low-temperature battery technology or driverless technology, a complete and comprehensive presentation can be obtained during the 2022 Winter Olympics.

27. Set up vendors’ standard points to develop stall economy. Netizen: It’s so smoky.

  Seimi Zhang, June 4 (Xinhua) Recently, the word "stall economy" has been completely popular, and the number of related Weibo topics has exceeded 600 million. Many places have set up vendors’ standard points to encourage the development of stall economy.

  Set up vendors’ standard points in many places to develop stall economy

  According to incomplete statistics, up to now, there are at least Shanghai, Jinan, Nanning, Zhengzhou, Nanjing, Chengdu, Hefei, Xiamen, Shaanxi, Liaoning, Jiangxi, Gansu, Changchun, Hangzhou, Changsha, Shijiazhuang, Nanning, Qingdao, Yichang, Huanggang, Deyang, Panzhihua, Guang ‘an, Nanchong, Ziyang.

  Data map: stall economy. Zhongxin jingwei photo

  Ying Xiwen, head of the macro-regional research team of the People’s Bank of China think tank, pointed out in an interview with Zhongxin Jingwei client that the stall economy has always been a "gray zone" in China’s urban economy, and its existence has certain rationality, which has alleviated the employment pressure to a certain extent, promoted the development of the tertiary industry, and at the same time activated the market and stimulated economic development.

  Zhang Zhixin, an associate professor at the School of Urban Economics and Public Administration of Capital University of Economics and Business, told the client of Zhongxin Jingwei that liberalizing the development of stall economy can meet people’s consumption demand, especially during the epidemic period, stall economy brings convenience to people’s shopping, and at the same time increases the fireworks in the city, which also meets the current requirements for epidemic prevention and control.

  The first Shanghai Nightlife Festival was launched on June 6th.

  On June 3rd, the press conference of Shanghai Municipal Government revealed that Shanghai will hold the first Shanghai Nightlife Festival from June 6th to June 30th. Create a new image of night Shanghai with fireworks, Shanghai flavor, fashion trend and international style.

  In addition, recently, Shanghai Urban Management Law Enforcement Bureau formulated and issued the Guiding Opinions of Shanghai Urban Management Law Enforcement Bureau on Optimizing the Business Environment, and Shanghai will support the development of new consumption formats. Promote the economic development of the night market, cooperate with local governments and relevant administrative departments to scientifically set up the night market, guide the night market to implement the management subject and implement merchant autonomy. Support specialty stores to carry out "external placement" operation, and implement refined management of external placement time and placement scope.

  Jinan proposes to develop "small store economy"

  On June 2nd, Liu Yanqiu, director of Jinan Municipal Bureau of Commerce, said at the press conference held by Jinan Municipal Party Committee and Municipal Government that Jinan would rationally release the street stall economy, and vigorously develop the night economy, promote consumption transformation and upgrading, and increase jobs by upgrading the IP brand of the night economy, cultivating the theme blocks of the night economy, holding special activities of the night economy, and building the brand of the night economy and culture.

  Jinan also proposed to develop "small store economy", optimize the access process of "small stores", shorten the time limit for examination and approval, and guide various formats to extend business hours; Support catering stores to increase snack categories and rest places to increase consumers’ stay time; Moderately allow businesses to make personalized shop signs, shop signs, beautiful Chen and street artists to sing, and increase the employment opportunities of urban residents.

  Nanning makes it clear that minor violations of urban management laws and regulations will not be punished.

  On June 2nd, the headquarters office of "Beautiful Nanning Clean, Smooth and Orderly Action" issued "Guiding Opinions on Doing a Good Job in Services such as Occupation Management, Road Market and Mobile Vendors", which came into effect on the 2nd and is valid until December 31st this year.

  The "Opinions" clarify that in order to protect the economy, temporary stalls are allowed to be opened near residential concentrated areas to guide self-produced and self-sold farmers and mobile vendors to regulate their operations; Encourage the use of idle areas inside and outside the community, set up temporary stalls, and where conditions permit, set up the morning market and night market. The "Opinions" also make it clear that enterprises and operators will not be punished for minor violations of relevant laws and regulations on urban management due to their production and business activities. In principle, no booth fee, booth rent and other fees will be charged to operators and mobile vendors who occupy the roads in permitted areas.

  Demonstrative zones of night economic agglomeration are arranged around Zhengzhou.

  On June 2nd, Zhengzhou issued "Opinions on Implementing People-Centered Development Thought and Doing Better Work for the People", in which it was mentioned that each county (city, district) and development zone should rationally arrange one or two demonstration zones of "night goods, night shopping, night appreciation, night tour and night health" and hold one or three night economic theme activities. To carry out the selection of night economic activities in counties (cities, districts) and development zones, the municipal finance will reward the top three with 1 million yuan, 800,000 yuan and 500,000 yuan respectively.

  On the evening of June 2, Zhengzhou Jiankang Road Night Market was very lively. Zhongxin jingwei photo

  In addition, all counties (cities, districts) and development zones in Zhengzhou should clearly plan their distribution, implement management measures, make full use of public places such as squares and parks and idle land, and set up bazaars and characteristic flea markets according to the principles of fixed time, fixed place, fixed format, fixed expenses and fixed management.

  Nanjing added 1,410 temporary outside stalls.

  On May 1st, Nanjing Urban Management Bureau issued "Guiding Opinions on Doing a Good Job in Service Management of Temporary Outside Stalls during Epidemic Prevention", requiring that obvious signs should be set up in temporary outside areas, stalls should be numbered, business items, business hours and safety tips should be publicized, and garbage should be collected separately at the site.

  On the basis of the existing 3,400 temporary stalls, Nanjing Urban Management Bureau added 134 temporary external stalls in the city this year. The area, scale and time period of setting up temporary external stalls in this opening need to be reviewed by the urban management departments of all districts. The urban management law enforcement department will resolutely investigate and deal with illegal acts such as occupying roads and unlicensed mobile stalls.

  Chengdu plans a more elaborate stall policy version 2.0

  On March 14th, Chengdu issued "Chengdu Urban Management Five Permits and One Persist in Coordinating Epidemic Prevention and Control to Help Economic Development". On the premise of ensuring safety, not occupying blind roads and fire exits, not infringing on the interests of others, and doing a good job in epidemic prevention and control, cleaning and sanitation, it is allowed to set up temporary stalls, allow street shops to operate outside the door, allow large shopping malls to carry out occupation promotion and allow mobile vendors to sell. As of May 28th, Chengdu has set up 2,230 temporary road stalls and stalls, allowing 17,147 temporary crossing points and 20,130 mobile vendors, increasing employment by more than 100,000 people.

  According to the Chengdu Urban Management Committee, Chengdu is planning a more precise and precise version of the policy 2.0, so as to realize the organic unity of standardized and orderly occupation of roads, clean and tidy city environment, convenient and fast life for citizens, more active urban consumption and stronger market atmosphere.

  Hefei stalls are divided into "forbidden areas" and "diversion areas"

  The setting area of Hefei stalls is divided into "forbidden area" and "diversion area". Among them, the "forbidden area" refers to the main roads, window units, squares, bridges (including footbridges), underground passages, the periphery of office areas, the entrance and exit of the campus within 100 meters, and other areas where stalls are not allowed to be set up as stipulated by laws and regulations. In addition to the forbidden areas, the areas outside the forbidden areas shall be demarcated by the district governments and development zone management committees and announced to the public without affecting the lives of citizens and traffic, and shall be standardized and managed according to the standards.

  There are 37 stalls in the "grooming area" to provide convenience for the public. In addition to 37 temporarily defined stalls, there are some seasonal or temporary convenience stalls in Hefei, mainly including temporary watermelon sales outlets, breakfast carts, kiosks and so on.

  Xiamen has been trying out the "booth" since 2019.

  Since June last year, the trial of "booth" has been carried out, and 50 "booth" of various types have been built in Xiamen, providing 1150 booths. In addition to the autonomy of business households, urban management and law enforcement departments also cooperate with relevant responsible units to do a good job in food safety and environmental sanitation management at these "stalls".

  Xiamen Urban Management and Law Enforcement Bureau said that it will further communicate and coordinate with relevant departments, make full use of idle venues, roads with few cars, beaches, etc., and establish flea markets, gourmet streets, fruit markets, etc. in a time-limited manner to bring more mobile vendors into orderly management.

  For the first time at the provincial level in Shaanxi Province, the "four permits" on the occupation of roads were put forward.

  On May 27th, Shaanxi Province issued a notice, proposing that "street shops in urban areas should be allowed to operate without affecting pedestrian access and ensuring safety, large shopping malls should be allowed to occupy the road for promotion, temporary stalls should be opened in residential areas, and mobile vendors should be allowed to occupy the road for operation at a certain time and area". This is the first time at the provincial level in Shaanxi Province that the "four permits" on the occupation of roads have been put forward.

  At the same time, Xi ‘an plans to set up 100 vegetable morning markets, 100 night market barbecue centralized management areas and 100 temporary food stall sites this year.

  Spreading economic related topics into hot search professional households

  Source: Weibo screenshot

  In the past few days, Weibo topics such as # Street Economy # # Urban Management called vendors to set up stalls # # Street Cars # have been on the hot search list. As of 23: 30 on June 3, the reading volume of # Street Economy # Weibo topic has exceeded 630 million, with more than 100,000 discussions.

  Source: Weibo User Comments Screenshot

  Spread the economic fire all over the country, all over the network. Netizens have said: "It is suggested that every city should leave some places for stalls, not sneaking stalls but civilized stalls, which will not affect traffic and the environment, but also increase income." "Stalls, night markets, so fireworks, like it." "The stall is really convenient and affordable and gives the community a sense of life."

  Source: Weibo User Comments Screenshot

  At the same time, netizens have also given advice to the economic development of the stalls: "The bottom line of maintaining hygiene, exclusive areas and food safety should also be adhered to." "It is allowed to set up stalls, but it can’t be arbitrarily placed, and a new harmonious and win-win economic order will be established." "Don’t overdo it, don’t be across the board."

  Expert: Letting go of the stall economy does not mean letting go of responsibility.

  During the development of stall economy, it is inevitable to cause some urban management problems, such as sanitation and pollution, traffic congestion, noise disturbing people, insecure commodity quality and safety, social security and tax evasion.

  The essay suggests taking this opportunity to solve the long-standing problem of standardizing stall economy in one fell swoop. The first is to register and manage the practitioners in the stall economy. The second is to limit the space and time of operation to avoid affecting traffic. The third is to strengthen the control of health pollution and establish an emergency management system for epidemic prevention. The fourth is to set up a service quality supervision mechanism to protect consumers’ rights and interests. The fifth is to improve management efficiency with the help of Internet thinking, such as online application, registration and tax filing.

  Zhang Zhixin said that letting go of the stall economy does not mean letting go of the responsibility, nor does it mean giving up the law. In terms of food safety, environmental pollution and other aspects related to the vital interests of the people, urban law enforcement departments must investigate reports, investigate violations and enforce the law strictly. But at the same time, we should avoid overcorrection and one size fits all. (Zhongxin Jingwei APP)