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A few days ago, Geely Galaxy officially released the official spy photos of its first pure electric SUV, and the new car will be officially named "Geely Galaxy E5". It is reported that the new car is expected to be launched at the 2024 Beijing Auto Show, which opened in April, and the estimated price is 150,000-200,000 yuan. It is worth mentioning that Geely Galaxy E5 is the first heavy new product of Geely Galaxy to anchor the global market. The left and right rudder vehicles are developed and tested at the same time, and will be sold to users around the world in the future.

In terms of appearance, although the new car is attached with camouflage, the outline of the car body line can be clearly distinguished. The new car adopts a closed front grille design, and the headlights on both sides adopt a long and narrow shape, which looks very sharp; On both sides of the front enclosure, there are C-shaped LED daytime running lights, and in the middle, there is a trapezoidal cooling opening, which makes the overall collocation more scientific and technological.

On the side of the car body, it can be seen that the overall size of the new car is not large, and it is expected that the compact SUV will be positioned. In terms of details, the new car is equipped with a hidden door handle. At the same time, the tail adopts the popular through taillight group, which has a strong sense of movement with the large spoiler above.

In terms of power, the rear-drive model adopts 400V architecture, with a maximum power of 200kW and a maximum torque of 343N·m；; The version adopts 800V architecture and is equipped with high-efficiency SiC electric drive. The maximum power of the front motor is 165kW, the maximum power of the rear motor is 310kW and the maximum torque is 710 N m. In terms of batteries, Galaxy E8 is equipped with 62kWh and 76kWh battery packs, with corresponding battery life of 550km, 665km and 620km respectively.

Finally, the sodium ion battery is coming!

A few days ago, China Chemical and Physical Power Industry Association announced that from October 8 to November 7, the whole network would solicit opinions on the General Specification for Sodium Ion Batteries. This general specification is mainly applicable to automotive power batteries, energy storage and other fields. If it goes well, it is expected to be released and implemented around November.

Domestic battery companies such as Contemporary Amperex Technology Co., Limited, BYD, Huayang, Chuanyi Technology and Vico Technology have already entered the sodium ion battery market, among which Contemporary Amperex Technology Co., Limited has made continuous technological breakthroughs.

However, at present, the electric vehicles on the market are basically lithium batteries, and a few high-end models are trying semi-solid batteries and solid batteries. Do we really need sodium ion batteries?

At present, there are two kinds of batteries commonly used in electric vehicles, namely lithium iron phosphate battery and ternary lithium battery. The main difference between these two batteries is that lithium iron phosphate battery has lower cost and higher safety, but its energy density is too low. Except BYD, other car companies basically only carry lithium iron phosphate batteries in low-end models.

The advantage of ternary lithium battery lies in its high energy density, while the disadvantage lies in its slightly higher risk and cost, and it is easier to deflagrate than lithium iron phosphate battery.

However, the theoretical energy density of ternary lithium battery will not exceed 500Wh/kg, and the energy density of 21700 battery introduced by Tesla can reach 300Wh/kg, which is the limit level of current power battery. According to the calculation of power consumption of 15 degrees per 100 kilometers, the battery weight of a car with a battery life of 1000 kilometers will be as high as 500kg or more.

The charging speed of electric vehicles is far less than that of fuel vehicles. Even if the number of charging piles is equal to that of fuel guns, it is more likely to cause congestion and queuing, so car owners generally have endurance anxiety. The battery life of domestic mainstream electric vehicles is usually 450 km ~650 km, which cannot solve the anxiety of car owners.

Therefore, many car companies and battery companies have been developing solid-state batteries. The lower limit of the energy density of solid-state batteries can almost be said to be the upper limit of the energy density of ternary lithium batteries. A casual search of relevant reports shows that the energy density of the solid-state battery jointly developed by Enli Power and Softbank Company is relatively low compared with other similar products, which can reach 300Wh/kg, while the energy density of the solid-state battery developed by NASA has reached an astonishing 500Wh/kg.

It seems that everything is beautiful, except the cost is slightly higher, but we may have overlooked a problem, whether it is lithium iron phosphate battery, ternary lithium battery or solid-state battery, it is inseparable from lithium.

According to the data of US Geological Survey (USGS), there are only about 98 million tons of lithium resources on the earth (data in 2022). Although half of the proven resources are in the hands of China enterprises, we must admit that this lithium mine resource is not enough to realize the electrification transformation of the global automobile industry. For this reason, Tesla will build its own lithium ore refining plant to improve the utilization rate of lithium ore resources.

The content of sodium ranks sixth, more than 400 times that of lithium. Rich in content and easy to mine, the cost of sodium ion battery is naturally much lower than that of lithium battery. For the sake of cost and environmental protection, sodium ion batteries are the best choice for low-cost and long battery life in low-end models.

In addition to low cost, sodium ion batteries have two advantages, that is, higher safety and better performance at low temperature. Even in the cold areas in the north, there is no need to worry that the winter temperature is too low and the battery life of electric vehicles will drop sharply.

Sodium ion battery seems to be the hope of realizing low cost and long battery life, but there is still a problem that sodium ion battery needs to solve, that is, the energy density is too low!

At the 15th Shenzhen International Battery Technology Exhibition in May this year, Tuobang released a sodium ion battery with an energy density of only 120Wh/kg, which is expected to increase to 160Wh/kg in 2025, even worse than lithium iron phosphate battery.

According to the data released by the second sodium ion battery industry chain and standard development forum held in July, the average energy density of the products evaluated by 17 sodium ion battery enterprises is only 104.1Wh/kg, which can be said to be terrible and not suitable for electric vehicles at all for the time being.

Contemporary Amperex Technology Co., Limited, the power battery company with the highest installed capacity in the world, invested heavily in the research and development of sodium ion batteries, and released the first generation of sodium ion batteries in 2021, with an energy density of 160Wh/kg. At the Shanghai Auto Show, companies such as Cherry and Chery announced that they would launch cars equipped with Contemporary Amperex Technology Co., Limited sodium ion batteries in the fourth quarter of this year, and the energy density of the second generation sodium ion batteries in Contemporary Amperex Technology Co., Limited could reach 200Wh/kg.

However, 200Wh/kg is obviously not enough to achieve 1000 km battery life and solve the anxiety of car owners. Similarly, according to the energy consumption of 15 degrees per 100 kilometers, the sodium ion battery pack with a battery life of 1000 kilometers weighs as high as 750kg. The weight of an ordinary B-class car is about 2000kg. If it is a medium-sized SUV, it is about 2500kg, and the proportion of batteries is too high.

Not only that, the battery also needs to occupy a lot of space. The energy density of the second generation sodium ion battery in Contemporary Amperex Technology Co., Limited is about 350Wh/L according to the volume, and the battery needs about 0.43 m space for 100 kilometers.

At present, some new energy vehicles adopt the skylight design because the bottom battery takes up too much space. If the traditional skylight design is adopted, the head space is likely to be too crowded. The dead weight of the battery will also affect the battery life. A car with too high weight needs a larger battery capacity to achieve the same battery life, occupying too much space and reducing the ride comfort.

The urgent task of sodium ion battery is still to improve the energy density, which is expected to reach 300Wh/kg, so that it is possible to achieve a long battery life of 1000 kilometers on ordinary models.

As far as the current situation is concerned, sodium ion batteries have the opportunity to gradually replace lithium iron phosphate batteries, and realize the tripartite confrontation with ternary lithium batteries and solid-state batteries in the future.

After the sodium ion battery is commercialized, the position of lithium iron phosphate battery will inevitably be very embarrassing, because the battery has the advantages of low cost and high safety, and all sodium ion batteries have it, and it performs better.

Chen Liquan, an academician of China Academy of Engineering, said that the cost of sodium ion batteries will be 20% lower than that of lithium iron phosphate batteries.

Xiaotong believes that in the future, the distribution of power batteries in the domestic automobile industry is likely to be dominated by sodium ion batteries, ternary lithium batteries and solid-state batteries.Among them, sodium ion batteries replace lithium iron phosphate batteries, which are mainly used in vehicles with less than 150,000 yuan, ternary lithium batteries are mainly used in high-end vehicles with 150,000 yuan to 350,000 yuan, and solid-state batteries are used in high-end vehicles with more than 350,000 yuan.

It should be noted that due to the influence of space and weight, sodium ion battery electric vehicles are unlikely to have a version with a battery life of 1000 kilometers, and the battery life is expected to be generally between 400 kilometers and 600 kilometers.

Ternary lithium batteries may have a small number of models with a battery life of 1000 kilometers, but the general battery life is expected to be 550 kilometers to 800 kilometers. The battery life of solid-state battery electric vehicles is likely to be more than 700 kilometers, and there are likely to be many models with a battery life of 1000 kilometers.

Of course, these predictions are all domestic cars, and the strategies of joint venture cars and domestic cars are different, so they don’t care so much about cost performance, so there may be some completely different results from domestic cars.

Special feature of 1905 film network "Jiang Jie"Yulan, go.On the evening of June 27th, I was in a movie.Yu Lan, a famous film performance artist who played "Jiang Jie", died in Beijing at the age of 99.

Yu Lan’s youngest son, Tian Zhuangzhuang, a famous film director, confirmed the news in a circle of friends. He wrote: "Mom is gone, and now your senses no longer work. Your heart is independent, naked, clear and in the present. You have never experienced it before, and everything you are experiencing now is the Buddha. Thanks to all those who care about my mother, I want to be alone for a few days. "

Wang Xiaotang, the original director of Bayi Factory and a film performance artist, deeply expressed his nostalgia and recollection of Lan by writing a mourning letter. Wang Xiaotang said: "Yu Lan is an outstanding son and daughter of the Chinese nation and a respected elder. Yu Lan is the’ most beautiful struggler’ and the pride of China film industry. Yu Lan is eternal! "

At the same time, China Film Group, Changying Group, Chen Shu, Cao Kefan, Zray, Ni Ping and other people in the literary and art circles also sent letters to mourn.

Yu Lan is one of the "22 movie stars in New China" and a witness to the development of new China movies. Although her film works are not many, her films are excellent, and she has created many dazzling heroic images on the screen.

In addition to performing, Yu Lan was appointed to set up the China Children’s Film Studio in her 60s. She was the first director of the Children’s Film Studio and ran in the front line of the development of children’s film in China.In 2009, she won the Golden Rooster Award for Lifetime Achievement in Chinese Film. When receiving the award, she said, "I have only done very little work for the cause of the party and the film industry."

Yu Lan is modest, and she will devote her whole life to China film art.. Now that Sisi has passed away, let’s review her film career, pay tribute to her performing arts and pay tribute to her pioneering work for children’s films in China!

01

In 1938, the Japanese army occupied Beiping, and Yu Lan was 17 years old the year after the fall of North China.Her old friend’s mother changed her original name from "Yu Peiwen" to "Yu Lan", which means: I hope you will walk in.Wan LiUnder a cloudless blue sky

　

Yu Lan’s first blue sky is in Yan ‘an. In August of that year, she walked for two months from Zhaitang, the anti-Japanese base area in Pingxi, crossed many enemy areas and arrived in Yan ‘an with full revolutionary blood.

When she wanted to fill in the information form, she saw a line written on the left and right sides of the form: "Excellent sons and daughters of the Chinese nation" on one side and "Infinite loyalty to the revolution" on the other. Yu Lan recalled that her eyes suddenly became "hot".

　

After that, she studied in Yan ‘an Anti-Japanese Military and Political University and Women’s University, and became a glorious Communist party member. During the period, because she spoke Mandarin well, she was sent to participate in the drama performance with anti-Japanese theme, and then transferred to the experimental troupe of Lu Xun College of Arts and Literature as an actress.

Yu Lan’s experience of performing drama for the masses in the countryside during the "Luyi" period enlightened her literary and artistic thoughts. In 1949, at the age of 28, Yu Lan was in her prime, and she went to her second blue sky: becoming a movie actress.

02

Yu Lan’s first screen work was that she played a female captain of the medical team who served the PLA wholeheartedly.This is not only the first time for Yu Lan to make a film, but also the first time for the director and screenwriter to make a film. She once recalled that her performance was still difficult and tense.

In the second film, Yu Lan played "Xiang Wuer", a family member of the Red Army who always cared about the revolution. This cooperation with director Junxiang Zhang finally made her feel like making a film.

Co-starring with Yu Shizhi is Yu Lan’s satisfactory work. She depicts a Beijing woman "Cheng Niangzi" who loves her husband and life.

At first, Yu Lan didn’t dare to take this play. On the one hand, it was a classic adaptation, and the pressure was great. On the other hand, she was not sure whether she could play this role well. "At that time, I was pregnant with Tian Zhuangzhuang and my legs were swollen."

　

Yu Shizhi encouraged Yu Lan to take her to the painting to experience life. Pregnant, she also went to Beijing Tianqiao to observe the working women in the street and learn their generous speech posture and action manner. Gradually, she had the confidence and confidence to play this film and role.

By the age of 33, Yu Lan had the courage to study acting again, and studied stanislavski’s performance system in the performance cadre training class of the Central Academy of Drama.After a year and a half of training, she realized that playing characters should have a sense of reality and life, and that performing arts should be used to influence the audience.

After that, Yu Lan and director Shuihua made films one after another, among which Revolutionary Family was the only collaboration between Yu Lan and her husband Tian Fang on the screen.

　

Yu Lan successfully created a strong red mother Zhou Lian in Revolutionary Family and won the Best Actress Award at Moscow International Film Festival. Premier Zhou also praised her performance, holding Yu Lan’s hand in a film conference and saying in front of everyone, "Yu Lan played a good mother!" "

　

Yu Lan’s acting peak is coming soon.

　

03

"The will of Communist party member is steel", "I know the name of the superior, and I know the name of the subordinate, but I can never tell the enemy."Yu Lan’s lines firmly spoken in the movie "Eternal Life in Fire" are deeply impressed by the audience. Jiang Jie, the female martyr she interpreted, has become an indelible and glorious female image in the history of China movies.

Yu Lan has become synonymous with "Jiang Jie". When recalling this film, Yu Lan said: "I seem to be her after Jiang Jie left, and I am very embarrassed." "I hope everyone will forget me and only remember Jiang Jie."In fact, Yu Lan is not only the starring role of Immortality in Fire, but also the original screenwriter of the film.

At the end of 1961, Yu Lan was hospitalized, during which she read the novel Red Rock serialized in China Youth Daily and was deeply moved by Jiang Jie’s story.Soon after, Beijing Film Studio decided to adapt and shoot Red Rock. The directors Shuihua and Yu Lan cooperated together. They went to Beidaihe and Chongqing to interview, talked with the author of Red Rock, sorted out more than 300,000 words of notes, and wrote three scripts before and after.

　

Because there are many stories about characters, it has been difficult to sort out a narrative main line in the script, so they turned to playwright Xia Yan for help. There were only two Jiang Jie plays in the original script, and Xia Yan suggested that the protagonist should be changed to Jiang Jie, plus Xu Yunfeng in Red Rock.

Xia Yan took over the revision and handed over the script in four days. After the film started shooting, Xia Yan specifically told Yu Lan: "You should play Jiang Jie, not Liu Hulan or Zhao Yiman."

　

Yu Lan was confused at first, and then slowly grasped the complex characteristics of Jiang Jie: a gentle woman in the family and a strong soldier in prison. Finally, she performed this great female image with real and natural performance.

Yu Lan once said that after the film was released, she didn’t dare to watch it, because she felt that her appearance was not like Jiang Jie’s, and her ideological height was beyond her reach. Later, she dared to watch it when she was old, and after watching it, she thought it was ok.

She is still humble about the performance.Jiang Jie and Xu Yunfeng went to the execution ground together at the end of the film, and the heroic melody of The Internationale sounded. Behind them washigh mountainWith pine and cypress, this is Yu Lan’s most satisfying scene. She said that every time she watched it, she felt "excited and into the play".

　

04

"Eternal Life in Fire" created a highlight. After starring in 1974, Yu Lan suddenly chose to bid farewell to the screen.During the work in the cadre school, Yu Lan fell from the roof and hurt her face, so she decided to leave acting and study directing, and directed her debut in 1978..

At the age of 60, Yu Lan went to her third blue sky: she devoted herself to the children’s film industry, built a Chinese children’s film studio from scratch, and worked until she was 80.Yu Lan recalled that when the Children’s Film Factory was first established, the conditions were simple, and it worked in a row of simple rooms in the North Film Factory. One day in 1983, when she went to work to pull the door handle, she was accidentally caught in the door and broke a section of her right ring finger.

When I arrived at the hospital, the doctor said that I had recovered for more than 20 days after connecting my severed finger. Shortly after the factory was established, Yu Lan threw away her broken knuckles because she thought it would affect her work. After sewing the wound, she returned to the factory and put it into work.

At the beginning of the establishment of the Children’s Film Factory, Yu Lan actively organized a creative team to shoot children’s films, and a series of works won many awards at domestic and foreign film festivals.

　

However, Yu Lan was dissatisfied, because the distribution and screening of children’s films in China was not good. She once said in an interview with the media at that time: "I am the head of children’s films, but I can’t send colorful children’s films to children. I am ashamed of 300 million children. The more I get to the festival, the more painful I am. However, the children’s film factory is small and weak, and it is difficult to meet the expectations. "

Yu Lan strives to improve the quantity, quality and influence of children’s films and provide spiritual food for children’s film art. She also runs for years:

　

Initiated the establishment of China Children’s and Teenagers’ Film Association, and founded the Children’s Film "Cow Award"; During his tenure as a member of Chinese People’s Political Consultative Conference, he submitted relevant proposals to promote the development of children’s films; Writing an article calling for "saving children’s movies"; The year before last, at the age of 97, she also attended Beijing International Children’s Film Week to discuss the future development of children’s films. ……

　

Yu Lan said: "Children are the future and hope of the motherland. Only by making more and better films that meet the characteristics of children can we satisfy children’s desire for knowledge and stimulate their rich imagination."

From the strangeness of first appearing on the screen to the natural blooming, Yu Lan broke through the single and conceptual performance program of the previous New China films, and her images of revolutionary fighters and working people were simple and sincere, reflecting the context of the times.

　

For performance, she always believes that only by really going deep into the people can I really write works that meet the needs of the people, and I can truly become an actor with both morality and art.

When I went to Yan ‘an, it was the revolution that prompted Lan to devote herself to art. From drama to film, from performance to children’s film, she also served the revolutionary ideal."Dedicated to the film.Love moviesShine on you is better than blue ". Yu Lan, we will always miss you!

(The content is compiled according to many interviews with Yu Lan in 2017-2019 movie channel)