A joint venture for battery packs for Fisker EMotion has been discontinued, does the graphene battery technology be a gimmick? Recently, Fisker Inc. electric car company officially announced that its and Nanotech Energy Inc.'s joint venture company Fisker Nanotech will terminate the operation. In October last year, Fiske announced the establishment of a new car company when the establishment of the joint venture company, and announced that the company's production of graphene batteries will be used for the upcoming Fisker EMotion electric vehicle.
This is known as the latest car battery technology has applied for a patent, but Fisker Nanotech company did not disclose too much about the battery details of the battery, but that they are using a new chemical combination, to provide efficient While reducing the requirements for space.
The energy it generates will be stored in an electric double layer capacitor made of graphene. This material is more than 300 times harder than steel, and has better heat and energy characteristics.
Jack Kavanaugh, chairman and acting chief executive of Nanotech Energy and also a leader of the joint venture, said that for some time the company had been putting all the energy into the time to meet Fisker's time, but apparently The progress of the development of graphene batteries may still be unable to keep up with Fisker plans in September at the Frankfurt Motor Show EMotion debut program.
According to the product plan, EMotion electric car positioning high-end niche market, the maximum speed can reach 161 miles / h (259km / h), life is more than 400 miles (643km), 9 minutes fast charge can travel 125 miles, The price is $ 129,000.
At present, this product is being booked for a deposit of $ 2,000. The order will be delivered by the end of 2019. All new customers are expected to open this new car by 2020
Now, EMotion, which relinquishes this battery, will turn to the advanced cylindrical lithium-ion NCM chemical battery produced by LG Chemical in Korea, and the battery pack is designed by Fisker Inc..
Fisker said the battery from the latest LG Chemical products, the company has tested the battery and verified that it can provide the required power and fast charge capacity. Changes in battery suppliers do not affect the performance of EMotion electric cars.
Fisker Motor Company said it will continue to cooperate with Nanotech on the application of graphene. At the same time, they are also focused on emerging battery technology, which is known as flexible solid-state battery technology.
Over the years, many companies have been studying solid-state battery technology, is used for lithium-ion battery liquid electrolyte to solid electrolyte to replace. This technology makes the battery more compact, more stable, and the ability to package the battery in a smaller volume, while carrying a higher voltage.
If there is no other case, this technology development will take five to seven years. Fiske expects the technology to be used in its already planned Volkswagen model, and its Volkswagen models are expected to be marketed by 2025. After the "friendly" breakup, Nanotech is also discussing several companies inside and outside the automotive industry, bringing its battery technology to market and conducting independent tests at the end of the season.
"We focus on areas such as cars, computers, cell phones, solar, aerospace and other Internet-related things, as well as medical and power tools," said Kavana.
Challenge Tesla, Fisker launched graphene battery pure electric luxury car, life up to 643 km! The
November 1, 2016, the US electric car manufacturer Fisker (Fisker) announced the new pure electric luxury models Fisker EMotion, using a new design, shape a great sense of the future and a sense of movement, allegedly Fisker EMotion mileage Will reach 643 km, the maximum speed of up to 260 km per hour.
According to the official said, this is called FiskerEMotion pure electric models using a lot of high-tech. The body is made of carbon fiber and aluminum material, Fisker uses a new electric power system layout, while has a comfortable and adequate rear space design.
Fisker EMotion uses a new graphene battery technology, graphene battery technology by Fisker Nanotech and Nanotech energy companies to develop, so that mileage can reach 643 km. Of course, it will also be equipped with automatic driving technology, but will be provided by third-party companies. Fisker EMotion will be on display in 2017 and announced the first delivery date. Liu Zhong Fan academician: polystyrene difficult to car battery "savior"
Graphene from the field of materials turned out to be the news of the street heard the news hot words, from it with the new energy vehicles. Hot new energy vehicles developed to today, the triumphant situation by the battery strangled the throat, the industry want to get rid of "choking" the pain of the urgent, from the graphene jump red speed can be seen one or two.
Even the story of the report made red graphene, but also hot new energy automotive related industries want to break through the bound to continue to expand the heart, but whether gravel can play the power of the battery to lift the "savior"?
Reporters interviewed the Chinese Academy of Sciences, Peking University School of Chemistry and Molecular Engineering Professor, Beijing Institute of graphen Dean Liu Zhong Fan, hope from him there is a more objective understanding of graphene.
It is helpful but far from subversion
Graphene "burst red" is nearly two years of things, but in fact similar research and try has been carried out for a long time. Liu Zhongfan for graphene in the automotive battery industry to retain the views of the development.
"Graphene in the country to try the most is added to the lithium-ion battery inside the conductive additive. Graphene good conductivity, put into a certain extent, improve the battery conductivity, reduce the resistance, the battery performance will be improved. "Liu Zhong Fan said that many people to do these attempts, but because of the source of graphene itself, the preparation method and other reasons, to do the product is not stable.
Lithium-ion battery with graphene to do conductive additives, Liu Zhong Fan popular interpretation of the same, like the MSG sauce, plus the same after the conductivity improved, the internal resistance is reduced, the battery performance will be improved.
In addition, he added that in the graphene before the carbon material family of carbon nanotubes have been more than 20 years of research history, more than ten years earlier than graphene. "At that time the addition of carbon nanotubes can also play a similar role, and now also put graphene and carbon nanotubes together, so in a sense, this type of carbon material added to have Effect, but the effect is limited. "
Liu Zhong Fan believes that graphene may improve the performance of automotive power battery to help, but will be the power battery industry to bring disruptive changes this argument is not appropriate.
The application of graphene is still open to question
Battery technology is difficult to break through a short period of time is considered to be the bottleneck of the development of electric vehicles, the industry is currently the most anticipated battery breakthrough, one is to improve the efficiency of charging, the second is to improve energy density.
Where does graphene work? In this regard, Liu Zhong Fan also gave his explanation.
"The role of these two aspects are mentioned, but I think the role of graphene in the practical application is still open to question." Liu Zhong Fan said, graphene conductivity is good, but it is not without shortcomings, for example, its surface area is relatively large The "In other words, although the conductivity of graphene, added to the battery inside will make lithium ions more active, thereby enhancing the charging efficiency.However, the little effect of graphene is not obvious, plus more and more space is not conducive to the application to On the car. "
He stressed that graphene in the battery application, not only to consider the weight of energy density, but also consider the volume of energy density, so the graphene battery from the mature application is still far away, there are many problems to consider and balance.
"Is not added after the charge must become particularly fast? I do not recognize this argument. Car battery inside with a little bit of graphene, it can play a big role? If the amount of added, there will be different The addition of the battery will increase the volume, and the car battery should be the better the smaller the storage capacity the better, so more and less are accompanied by other problems arise. "Liu Zhong Fan said, Graphene began to have up to twelve years time, the beginning of the study of graphene in the battery on the application, but now we are still arguing, which shows that the application of graphene in the battery to solve the problem is still a lot.
Therefore, Liu Zhong Fan does not think that a short period of time, graphene in the field of automotive batteries have a great breakthrough. Although the attitude is not optimistic, but he does not deny that graphene is also the future development of power battery is worth a try.
The multi-effort of the system is more feasible
To solve the problem of electric vehicle mileage, Liu Zhong Fan that can not only hope in the battery material on the breakthrough, the development of electric vehicles is a system problem, the system should be systematically resolved from various aspects.
Liu Zhong Fan that improve the mileage of electric vehicles, the future direction of efforts can have two, "First, reduce vehicle weight, such as weight by half, the original one ton now half a ton, then the need for energy will be half; , The energy density of the battery doubled, the two sides go together, so I think it is feasible, but if the effort from the battery alone, the existing car installed on the battery, it asked it to run 500 km or more, "I think it 's unrealistic to improve the energy density of the battery to reach more than 500 kilometers."
Electric vehicle power battery is also a need to solve the problem, Liu Zhong Fan said, "power battery performance and material related to the structure also has a relationship with the configuration of the pile has a relationship. Only these related problems are resolved, In order to ensure the overall performance of the upgrade, the material improvement is only one aspect of it.
Tesla's success is an example. "Tesla life mileage is high, but in fact it did not use any breakthrough material or technology, the reason why the battery mileage is high because the battery management is doing well." Liu Zhong Fan gave the most simple example, Such as a class of people work, command level, the organization level of high efficiency and high efficiency; command ability is poor, we are not consistent action, the efficiency is certainly bad. Battery management is the same, the battery management strategy to do well, then the same level The battery to play the effect is certainly better.Tesla successful success in the battery management done well, and this is precisely the lack of domestic electric vehicle industry.