Developing the new energy automotive industry just started to choose charging mode or the electricity debate has been terminated. State grid initially tend to support in electric mode, and since 2006, organized a series of electric car charger for electric facilities research and practice work, but from a national power grid in recent years we have seen in terms of charging pile foundation facilities construction, charging pile layout speed is far greater than in power station is completed.
In the past there are some problems in the development of the electric model. Such as need larger site storage battery, this is equivalent to establish the cost of the gas station. Also consider the cost of the power station, there must be a part of the battery in charging power station, as a backup. In addition, automobile chassis to do the corresponding modification, and the way of logistics delivery of battery costs are high. So in the short term to build a sufficient number of basic impossible in power station.
In addition, in the electric model involving national standard unified system in power plants and the batteries, and the performance of the national power grid has reflected the government spending too much on the short term will not change in electric mode.
But in halfway to the electric model after the first round of testing stagnation, did not completely out of new energy automobile market. The lifan cars, Beijing new energy has already begun to layout in electric field; Zhongtai automobile, guangzhou bus, saic, in company with business in electricity infrastructure in-depth cooperation.
In electric mode three advantages:
Charging more freedom, charging time is greatly shortened
Body, in conjunction with battery independent operation in guarantee replacement battery pack convenience at the same time, and greatly speed up the charge. Charging time shortened, new energy vehicles to reduce limitations, improve the efficiency of the use of new energy vehicles.
New energy barriers, promote the development of new energy vehicles
New energy vehicles due to the battery and the reason of the instability, received many questions. Used in charging mode, consumers only need to buy electric cars, and the use of the battery, the use of the lease. In a move that will solve the barriers of new energy vehicles, from the source so that more consumers go to choose new energy vehicles, promote the development of new energy vehicles.
Overall planning of resources sharing
Necessary for battery replacement is need enterprise of new energy vehicles are all use the same type the same specification of the battery pack. But so far, the new energy automobile enterprises own, independent research and development of new energy battery technology development is slow. Model can be used in the electric charge from the source in their own way to solve the limitations of independent research and development, resource sharing will be even more rapid driving the development of new energy industry.
Silence in electric mode back to life again, the reason is that nearly five years, driven by market prospects, the folk capital support in electric mode of research and development companies has never stopped the pace of technology research and development, in the cost of electricity facilities, covers an area of, efficiency has been the major improvement; In electric mode after the tortuous finally found his accurate market positioning, in some special areas, used to supplement the charging mode, rather than compete with charging mode.
With technology development, in the past, there are some problems in the development of the electric model need to larger site storage batteries are solved, for example, today's electric cars in power plant area has been reduced by 89%, quick change equipment volume decreased by 50%, weight of equipment by 60%, changing electric time reduced by 50%, in the stability of the electric successfully ascend from 85% to more than 85%.
Other electric taxi, electric special vehicle, electric vehicle, electric vehicle logistics is generally customized models specifications, such as brand, battery specifications are relatively consistent, very suitable for in electric mode.
Lifan motors this big push into the electric car in power plant, in fact it is for it to the new energy and car rental, the transformation of financial services for infrastructure. We can see the strategy of "think blue", a blueprint is: the first 2000 cars on the road in chongqing area lifan electric taxi at Mercedes, after the battery warning notice, quickly to in power stations, 3 minutes to replace the battery, and start operations.
Beijing new energy company, despite the size bigger, more platform resources, also said: the research and development of electric vehicles C50EB will be the first in the field of Beijing taxi. Because of taxicabs, unified, unapt appear different battery types, at the same time, management is relatively convenient.
Baic C50EB for electric taxis for new energy development in a fully charged battery only need 3 minutes, in an electric can run 200 kilometers. Can realize double class taxi operation, improve the efficiency of the taxi company. At the same time, the use of gas station site resources construction in power plant, also solve the problem in electrical facilities construction site resources.
The personage inside course of study thinks, promoted in electric mode is the best way to solve the taxi electric operation. As for charging or in electricity, specific still should see specific what to do, the economic benefit and cost, not all negative or positive.
Previously, due to their respective interests involved, charging or the electric model was significant controversial topic in the field of electric vehicles. Most electric cars enterprise insists on charging mode, because doing so can the independent control of core technology such as batteries, and control the profits from battery technology. But think state grid and other units, in electric mode is more advantageous to reduce the cost, avoid the infrastructure barriers, open the breakthrough for the development of electric vehicle market, of course, this can help the master cell technology and its derivative resources.
Countries are not clearly positioning for filling, in electric mode, only raised a slow charging pile to adjust measures to local conditions and public filling in electric facilities, power battery recycling management measures, set up power battery cascade utilization and recycling management system.
State 863 energy saving and new energy automotive great project management consulting team Wang Binggang once said: "it defies simple negation in electric mode, the use of it in certain environment, such as the electric field of taxi, there is more efficient to run price advantage. Compared with the current mainstream of charging mode, in electric model has covers an area of smaller, more efficient, the cost advantages of greatly reduced, can run in a small, lean way, basically be to see the choice of enterprise and market."
Filling, in electric mode has its advantages and disadvantages. In electric mode to achieve the overall replacement of the battery module, can save the charging time, is very convenient for electric bus. However, frequent in electricity move the battery can cause damage to the frame, lead to the electrode spark plug wear easily play, safety problems; The most important of all, the electric car companies have battery specification and standard is different, it is difficult to guarantee each electric model can find suitable replacement battery in the power plant. Electric car companies exchange electric mode is also rejected, are wary of losing control of battery technology, the nature does not favor the development of electric vehicle industry.
New energy car power supply mode, in electric mode has disadvantage of standardization of one of the reasons is batteries. In electric mode is put forward in order to solve the electric vehicle charging time is long, the problem of battery life, the essence of which is want to have a high efficiency of a physical change to replace the low efficiency of electrochemical changes. However, because the battery is not just a container like cans, if only the battery, regardless of the square or circular batteries, can be assembled into a series of standard cell module (number of batteries and got behind a string of cells, some string concatenated into a battery module), there is no technical barriers in electricity. On the contrary, the battery is needed and battery management system (BMS) to work, the relationship between the two are inseparable.
As the main energy storage device of the electric car battery module, is a key equipment of electric vehicles, battery module of temperature rise will seriously affect the operation of battery electrochemistry system, cycle life and charge acceptability, battery module, power, security and reliability; Battery module between each unit in the uneven temperature will influence the consistency of the battery performance and battery charged state of (SOC) estimation accuracy, affect the electric control system and life. Therefore, battery module, battery management system (BMS) become a key to the survival and development of new energy vehicles industry core technology. Battery management system (BMS) is not just the battery protector, and vehicle interact even at the same time, the best energy release control play a battery, battery management system (BMS) is a hub connecting the battery, charger, car charger, charging pile, multiple electric equipment to work together, make a better play to the battery characteristics.
In the electric business model:
1. Battery lease, rapid change is given priority to;
2, cancel the government subsidies, the use of the PPP mode (for credit), promote the electric car infrastructure construction, promote the electric car industry rapid and sustainable development;
3, provide a package of support industry alliance, including technology, services, capital and industrialization;
4. Match the key parts for car enterprises provide network support free of charge, provide favorable network services to end users.
New ideas can reflect the level of industry development to a certain extent, but no matter what kind of view should be practical, combine existing resources and market environment, to strengthen the innovation on the basis of the existing industry development. For now, the new energy industry will still products as the main selling point of the market, for electrical charging mode put forward is selling products to selling services, from a certain extent, change the electric charge mode can promote the diversified development of the industry.
Yong-dong liu, deputy director of China federation of electric power enterprise standardization center has revealed that the electric car in electricity standard revision have been on the agenda, will change with the enterprise representatives, experts, this paper discussed the electricity standard, believe in the near future electric vehicles in the electric standards will also be introduced. Standard after unification, will sweep in electric mode to promote technical problems.
Conclusion: in the technical problem is no longer in the way, all kinds of "discourse" is blowing, electric cars in electric mode seems to have time to try to rise again, in electricity and charging two modes will have complementary advantages, to promote the electric car further popularization.