“i've never felt so fast before, i've only had about 20 percent of my car, gone to the bathroom and came back with 80 percent”. The experience of speeding, which mr. Shimin sun lamented, is the single integrated demonstration station used in shenzhen for solar overcharge and network interaction, with a maximum power of 640 kilowatts (kw) and a 10-fold increase in charge speed and a 100-degree charge of electricity compared to the normal pillar。
One cup of coffee, full of electricity, and just like this beautiful vision, shenzhen is moving ahead at super-speed with the construction of the “excess city”. By 22 march, 306 overcharge stations had been built throughout the city, leading to overcharging stations, more chargers than petrol stations, and more fuel guns, meaning that the charge in shenzhen was already as efficient as fuel。
Standard lead
Building the “extreme city”, shenzhen was brave enough to demonstrate。
Recently, shenzhen became the first city in the country to have two local standards for the evaluation and design of superchargers。
From the launch of the first fully liquid cold supercharged demonstration station in june 2023 and the launch of the “excess city” project, to the first launch of the superfilled “shenzhen standards”, shenzhen interpreted the super-speed of building the world's first-class super-filled city in a practical way, turning the “planning map” into a “real picture”. As at 22 march, 306 overfill stations, 125 v2g demonstration stations and 12 integrated demonstration stations for optical storage and network interaction had been built throughout the city。
Indeed, shenzhen has long defined a road map race for “extraordinary track”. In september 2023, on the basis of the shenzhen new energy vehicle charge facility specialized plan, shenzhen issued the "quality planning and construction programme for new energy vehicle recharging in shenzhen city (2023-2025)" (the “programme”) to expedite the construction of a new energy vehicle recharging system, based on the principles of “harmonized planning, harmonization of standards, harmonization of platforms, harmonization of markings” and defining priorities in the areas of facility construction, operation services, industrial synergy, standards systems, etc。
Currently, shenzhen has completed its immediate target of 300 public overload stations. According to the programme, by the end of 2024, a global system of technology-leading and multi-spectrum overcharging over-charging facilities will have been completed, the “power-filling one-grid” power demand mobilization interaction will have matured, the ecological advantages of enterprise, technology, scenes, etc., and the image of shenzhen over-filled brands will have been accelerated; by 2025, the industrial ecology of the deep-integrated “carlight cloud” will have been created to help develop deep shenzhen products and services into domestic and foreign markets, promote the high-quality development of foreign trade integration within the distribution of new energy vehicles in shenzhen city and create the world's first-class “over-filled city”。
Shenzhen leads high-quality industrial development through the construction of standardized systems. These two supercharged shenzhen standards, implemented on 1 april, not only clarify that the single-gun power of overcharged equipment is not less than 480 kw, but also pioneered a hierarchy of evaluation indicators for technical indicators such as supercharged equipment recharge service capacity, noise, efficiency, protection grade, etc., and set out specific standard norms for the location of centralized public charging stations for electric vehicles, installation of chargers, and electrical quality requirements。
Technology leads. Shenzhen industrial chain has over 50% market ownership
Achieving the “one cup of coffee, full of electricity” overcharge requires the construction of a high-quality new energy vehicle charging infrastructure。
Unlike ordinary chargers, overcharges impose higher requirements on the technical capability of chargers. High power charge at extreme speed means that large amounts of heat will be generated during charging, and how the rapid dispersion of heat becomes a problem that must be addressed at a supercharge. In order to ensure the safe operation of charging facilities, liquid cold technology is increasingly applied in overcharged piles。
In an overcharged technology layout, china has chosen a technology route for total liquid cooling with a maximum output power of 600 kw and a maximum current of 600 a, which can be recharged at the speed of “one kilometre per second”. At present, china has over 10,000 fully liquid cold overcharged, creating a high-quality recharge target network covering inter-city charging, dedicated field stations, urban public and residential charging。
In the area of overcharging, not only does shenzhen have an accelerated layout of its giants, but the entire industrial chain is closely linked and chained, and the industrial convergence advantage has been transformed into a market advantage. Journalists have learned that shenzhen enterprises have a strong technical capacity in the field of charging equipment, with 11 local charging equipment terminals, including chinese, british flying, young league, shenghong, kohua, otshou, en+, costa, koreon electronics, magmet and sichuan long, with a combined national market power of over 50 per cent. Among them, in the area of recharge modules (about 50 per cent of the terminal costs) for core parts of charged stakes, the national market share of eight shenzhen local enterprises, namely, yongliang union, british flying power, green power, huacheng, kohua, magmet, sheng hong kong, and young cre, together exceeds 70 per cent。
Building a “super-charged city” with universal recharge infrastructure is far from sufficient, and motorists must work together to break through and launch a new generation of energy vehicles. Over the past two years, in order to achieve overcharge efficiency, cars have introduced 800v high-voltage platform models for adaptation. As of january this year, more than 130 overcharge models with 800 v platforms and large currents have been introduced on the market, with a general sale price of more than 150,000, of which biadi has eight. The china high pressure fast filled industry development report (2023-2025) shows that the mainstream model will support the high pressure fast in 2025; it is expected that by the end of 2026, the market holdings in support of the high pressure fast charge will reach more than 13 million。
The secretary-general of the association of new energy motor operators in shenzhen city expressed his trepidation that while the new energy vehicles currently on the market were still dominated by low-pressure platforms, technological upgrading was a necessary trend. Existing overcharges are largely configured over a 10-year useful life, which means that the new energy automobile industry can be supported in the longer term. In the future, as battery materials, battery management technologies, etc. Are further upgraded, the increasing number of high-pressure platform models will move to the market, and consumers will actually feel the benefits of overloading。
Smart platform to help upgrade the new energy industry
Ms. Wu, who works at the fukuda century centre of excellence, opened her app in shenzhen by close to work and found the nearest overcharging station close to her by the new energy truck charging entrance. "i'm going to drive the car in five minutes to buy coffee to meet my travel needs."
Behind the “one key, one key charge” is shenzhen's first domestic “power charge one net” based on a city-wide local level, a fully controlled and well-moderated unified time and space information platform (bim/cim), which provides full access to city-wide charging facilities, not only by providing citizens with a one-stop service to charge new energy vehicles, but also by strengthening data connectivity with electric vehicles, recharging facility operators, and creating a more intelligent government regulatory platform to help build new power systems that interact amicably with the network's payloads。
By the end of 2023, the city-wide stock of new energy vehicles was over 970,000, with new vehicles having the highest global penetration rate of 60 per cent. According to the relevant plans, the size of shenzhen's new energy vehicles will reach 1. 3 million by the end of 2025. The growth of new energy car users has resulted in a wide range of charging facility applications。
“the spread of overcharging stations will push down another `a mountain' in the new energy vehicle promotion, so that `charges as fast as refuelling' will contribute greatly to industrial development.” the deputy director-general of the great gulf technology research centre for ecology, gumonin, has stated that the production and sale of new energy vehicles, not only boosting domestic demand but also travelling overseas, and the pursuit of high-speed charging efficiency is aimed at completely eliminating consumer “resilient anxiety”, and that the availability of charging infrastructure has become one of the key factors influencing the penetration of new energy vehicles in the market。
In the country, a number of cities are working on “excessive” construction. Shenzhen's goal is more than that, to focus on the “new generation of world-class car cities” by targeting the critical link of charging infrastructure。
“the new generation of world-class car cities, not just car-making, covers technological innovation, high-end manufacturing innovation, innovation in consumer applications, innovation in business models and innovation in eco-cultural innovation, which are reshaping the entire industrial ecosystem.” in china (shenzhen), the director of the centre for research on financial and economic trade and industrial development of the china institute for integrated development (shenzhen) has stated that shenzhen's “excessive” construction does not merely satisfy “use” and that looking up and down the industrial chain, it will lead to a new round of technology overlaps that will lead to upgrading of the entire new energy industry。
[supervisor news+]
Where is the supercharge technology? Fill up the bucket
The development of overcharging technologies poses new challenges for battery materials, the construction of recharge facilities and grid load management, as well as new opportunities for upgrading and sustainable development of the new energy automobile industry. How can security and efficiency be ensured in the process of overloading
What's the overload
“as the new energy vehicle battery capacity grows, the overload will effectively address the need for quick recharge.” wang shih-do, deputy director of the new energy technology innovation centre at the shenzhen university institute, said that overcharge was the use of high power chargers, combined with the corresponding battery technology, to significantly reduce the recharge time of new energy vehicles。
New energy vehicle charging technologies begin slowly and are fast and overfilled as the charging power increases. Different types of chargers have different equipment structures. According to wang, the new energy car batteries use direct current power, while the grid transmits power exchange, and the role of charging stakes is to complete current imports from grid to battery as “intermediaries”. The slow-charged stakes, which are often small in size, can be mounted on walls using a wall-based structure consisting mainly of relays, which bring communication power directly into new energy vehicles, which are then processed by vehicle-mounted equipment to complete the conversion of direct current power。
“for fast-charged and supercharged stakes, the power of chargers has increased significantly, placing higher demands on the volume, dispersion and cost of the current system, so that the whole-flow equipment must be placed in the mainframe connected to the charged gun line. That is to say, the conversion of direct currents from charging stakes is then delivered directly to batteries, which significantly increases the efficiency of chargers.” wang seon said。
How to ensure the safety of charging
The technological threshold for simply increasing charge power is not high, but how can the “one cup of coffee, full of electricity” overcharge be actually achieved and how can the charging process be secured
Wang shih-chung stated that, unlike normal charging, overcharges are equivalent to charging within the limits that battery can bear, and are more technically safe. The achievement of the hypervelocity charge is not limited to the construction of overcharged equipment, but also requires systematic upgrading from battery monomer technology, battery management systems to grid distribution。
The view of the academic community coincides with that of the industry. The deputy general manager of the great bay technology research centre for extremely filled ecology also argued that the development of supercharged technology involved the entire industrial chain, that batteries were the receiver of currents, that chargers were the supplier of currents, and that the whole vehicle was responsible for the management and control of the full recharge process, and that the three parties had to work together to develop. This is in fact similar to the barrel effect, where the short plate will determine the recharge efficiency achieved by overcharge and will affect the consumer's eventual experience with the use of new energy vehicles。
In terms of battery material innovation, wang see-dong noted that in high power charge, higher demands were placed on the technical capability of lithium batteries. Because, when charged at a high multiple rate, the batteries are “lithium-in” and lithium accumulates at the negative poles of the batteries, which may cause the puncture of the diaphragm to trigger both positive and negative short circuits. As a result, lithium batteries are now significantly elevated on both positive and negative polar materials, significantly reducing the likelihood of such “lithium sucking”。
He also indicated that a number of studies had been carried out to ensure the safety of the charging process in the battery management system. On the one hand, multiple dimensions are directly monitored for battery charging processes through hardware sensors; on the other hand, the most reasonable voltage current volatility is determined by the construction of a battery ai large model, which is studied in depth by big data。
Shenzhen super-charged brand
You know? In addition to shenzhen standards, there's a brand label. Its main tone is derived from the shenzhen city flower, triangular plum, which conveys the concept of environmental protection and sustainable development, while incorporating the vision of electrical wire elements and thunderbolts and branding of new energy vehicle charging facilities. Let the loud slogan “one cup of coffee, full of electricity” help shenzhen accelerate the construction of the world's first-class “excess city”。
At the end of last year, the " unified image design for public branding of new energy vehicle charging facilities in shenzhen city " was officially published, and branding was also included in the uniform image design for public branding of new energy vehicle charging facilities. The shenzhen supercharge "shenzhen quick fill" brands combine positioning graphics, electrical elements and lightning symbols, highlighting the concept of efficient charging. Among them, the shenzhen supercharge mark uses two wires to convey a faster, reliable and fast charge experience. The shenzhen quick fill follows a uniform graphic element, with a line used to distinguish the outer perimeter。
As the slogan “shenzhen overcharge”, “a cup of coffee, full of electricity” highlights shenzhen's super-charged, conveniently integrated image of coffee, making the overall design of the slogan very lively. At the same time, join in green green and echo the purple of trim。
In addition, shenzhen regulates the form and scope of use of public brand signs in outdoors, forklifts in the parking lot, secondary entrance signs, light-box guides, pole billboards, two-way parking sheds, open-air overfilled background, utility station complexes, buildings, and brand-derived products such as cultural shirts, handbags, hats, badges and cups。
It is understood that the public brand logo of the new energy vehicle charging facility in shenzhen city should be applied to the shenzhen city development commission prior to its use and filled in the " request for the use of the public brand marking of the new energy vehicle charging facility in shenzhen city " , which was approved for use within the scope of the authorization。
(by shenzhen district newspaper reporter, bear chang, zhu, wu yag, wu seo-mi)
