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.

"Adventure Life" was well received: variety shows are not only entertainment, but also social care.

  Douban 9.1 points, the star documentary reality show "Adventure Life" updated in Tencent video every Tuesday is a rare "explosion" in recent domestic variety shows. Although there are stars’ blessings, this program does not have the impetuousness of game variety, nor does it have a cursory tour of travel variety.

  The audience saw the other side of the star in the program. For example, the hostess Xiao S shed tears in the face of the hunted elephant, and the literary actress showed her early wisdom in the process of pursuing the tornado in spring and summer. The singer Pu Shu showed her sensitivity and casualness in the program. Behind the show, there is also an unconventional team. They have never produced variety shows before, and they are more focused on the creation of documentaries. It is precisely this unconventional operation that has brought a clean stream to the domestic original variety show.

  Program settings cannot be defined.

  Rejected by many stars

  As the producer of the documentary "The Train on the Way Home" and "A Hard Work", Zhao Qi, the general director of "Adventure Life" and his studio have been making documentaries before, and it is actually a coincidence that they contacted the project of "Adventure Life". Aya, the host, wanted to do a unique variety show and find Zhao Qi’s team. After repeated discussions, the two sides came up with the planning scheme of Adventure Life. When the plan was shown to Tencent, I also encountered the question "What kind of program is this?". After all, according to the original setting, Aya just made 10 trips with 10 star friends on the show.

  According to the operating experience of past travel reality shows, flowers and teenagers, for example, focus on showing the relationship between stars when they travel overseas, while Fast Forward launches a game reality show overseas with the nature of competition, but Adventure Life does not travel or compete, and no one can imagine what form it will be. "Including when communicating with artists, many artists wondered what we were going to do, and some people refused our invitation because of this uncertainty." Zhao Qi revealed that the guests invited by the current program are actually very adventurous and willing to make such an attempt under the premise of uncertain program form.

  "We believe that people will start to change at a certain moment because of a special opportunity. This change may be because you went to a certain place, or because you met someone. In our view, this change is a kind of life ‘ Adventure ’ 。” Zhao Qi said that based on this presupposition, the film crew also prepared various experiences for artists, such as chasing tornadoes in the United States, climbing mountains, watching elephants in Africa, and experiencing music therapy in hospice care institutions. To sum up, it is "don’t go to tourist attractions, communicate and communicate with local people as much as possible". This arrangement also had a wonderful chemical reaction with artists. For example, Pu Shu, who is sensitive and introverted, repeatedly refused to shoot, but opened himself after riding a motorcycle, and the contrast between before and after also revealed his true personality.

  Documentary team shooting

  Present the artist’s true feelings

  Adventure Life includes 10 artists and 10 destinations in advance, and each journey is also estimated to be an overseas trip of 6 to 7 days. According to the configuration of conventional variety shows, this is a large variety team that needs 100 people. However, Zhao Qi revealed that the filming still continued the configuration of the documentary film crew, and with the photographer team, there were more than 20 people.

  In terms of shooting methods, the team also insists on adopting the documentary mode of small machine and small team. Compared with the habit of shooting dozens of cameras in variety shows and often clearing the field, the shooting of Adventure Life is still "small and beautiful" in the form of workshops. "The documentary team hopes to reduce the involvement of the camera as much as possible. Even when shooting outside, we will not let the camera follow too close, so as to make the artist’s state more relaxed and natural." Zhao Qi said that according to the experience of documentary shooting, if the artist can finally ignore the existence of the lens, it will be considered as a qualified shooting effect.

  When communicating with the artists’ team, the film crew will also ask the artists to reduce the number of staff accompanying them when shooting overseas as much as possible, and at the same time require a shooting cycle of at least 6 to 7 days. "The smaller the number of artists, the more likely an artist is to step out of his comfort zone. If he returns to his small circle as soon as he finishes filming, it is actually difficult to really form a close relationship with the shooting team." Zhao Qi revealed that if the team protection is relatively weakened, artists will have a stronger dependence on the film crew and their presentation in the film will be more realistic. A shooting cycle of about a week also helps to accelerate the establishment of trust between artists and the film crew. "It is obviously difficult to really experience the so-called life and there will be no special feelings when you leave by plane just for two or three days like a general variety show."

  Focus on social public sphere

  Want to touch the audience

  In the title of "Adventure Life", there is such a passage, "The earth, 510 million square kilometers; Humans, 7.04 billion. When we stare at the world, the world stares at us. When we met them, we also met ourselves. Only starting is the beginning of everything. " The audience "Sister Dog Flower" said that it was this passage that made her feel that this program was different, "Haruki Murakami said, ‘ This happens from time to time in my life, and something happens. The light of that moment is like a flare, which vividly illuminates the surrounding scenery that is usually invisible to the naked eye. ’ When I watched Adventure Life, my feelings were nothing more than this. "

  "This program shows the three-dimensional sense of the world and the multifaceted nature of human nature. The guests of the program are trying new explorations and feeling new adventures every moment, and as an audience, the same is true." For Zhao Qi, this kind of program feedback is exactly what he pursues. "We always think that variety shows are entertainment, but there are other possibilities besides entertainment." In his view, as an extremely important social resource, stars’ leading participation in activities will naturally generate attraction. "Wouldn’t it be better if we used this attraction to focus on social public areas and attract people’s attention to those areas with more social significance and value?"

  He made such an attempt in "Adventure Life", in which the singer Mao was not easy to participate, and the program group arranged for Mao to go to a hospice care institution in Taiwan Province to experience the help of music therapy to dementia patients and severely disabled people. "We have all heard of hospice care, but few people know what kind of institution this is and how the old people live in it. After the broadcast of this program, I believe that many young people can learn about this institution, perhaps because of this program to start contact with hospice care. " Zhao Qi said that the film crew doesn’t set specific goals, but they are more concerned about touching the audience through the artist’s experience, which may help the society pay attention to related topics.

  "We are really not a traditional variety show team, but this is not our disadvantage and shortcoming." Zhao Qi bluntly said that as a documentary team, they have their own image creation methods that they are good at, and they have more cultural expectations different from variety shows, which is also the root of the completely different features of Adventure Life. "This may be the insistence of a documentary, but someone has to do this kind of thing." (Reporter Li Xiazhi)