When talking with Wan Zihao and others, Yang Jie also readily agreed to Wan Zihao's request to use technology patents to invest in this new material production line. ∵ Eight ∵ Eight ∵ Read ∵ Books, .↗.▲o

However, Yang Jie is more concerned about the use of graphene materials to improve the energy density of batteries, and battery technology has fallen into a period of stagnation in the past two decades, and it has been difficult to greatly improve energy density.

Now the energy density of ternary lithium battery of Aode Technology Company can only reach 130Wh, which is already a very high technical level, Yang Jie still hopes to be able to increase the energy density to the level of 200Wh per kilogram before 10 years, and the energy density can reach the level of 400Wh per kilogram in 20 years.

This is a very difficult matter, and hearing Yang Jie's request, these experts from Tongji University and Aode Technology Company all felt a lot of pressure.

"Yang Shao, now our research and development on three-dimensional graphene materials is relatively smooth, and a new generation of ternary lithium battery products can be launched in the year after tomorrow, and it can still be done at the level of 200wh per kilogram. ”

Tong Zhijiang, technical director and chief scientist of Aode Technology, said.

Yang Jie nodded: "There has been no major breakthrough in material technology in battery technology over the years, and this time it was not easy to find a material that is more suitable for making electrode materials, and I hope that we can make a great breakthrough in battery technology." ”

Wan Zihao said: "If you want to improve the energy density of the battery, the positive electrode material needs to go in the direction of high manganese and high nickel, Yang Jie, what do you think?"

Yang Jie said: "Now the positive electrode materials of ternary polymer lithium batteries are basically lithium-nickel-cobalt-manganese materials, and our Huaxing Group has now prepared three-dimensional graphene foam materials, which can be used as carrier materials with high loads, and we have more space in the selection of electroactive materials." %∷8%∷8%∷Read%∷Book,.≮.※o"

Yang Jie said: "We still leave the product to the market to choose, we provide different products according to market demand, and we still honestly do a good job in R&D and technical reserves on battery technology." ”

He did not pat his head to decide the product technology route of Aode Technology Company, and it is the most important thing to make various technical reserves in the battery technology itself, so as to seize the market outlet at any time.

Yang Jie also talked to everyone about the supercapacitor battery, after all, this is the technical field that he attaches the most importance to, although the supercapacitor battery of Aode Technology Company has achieved 65wh per kilogram in energy density, which has exceeded the lead-acid battery, but there is still a lot of distance from the energy density of the lithium battery, and he also hopes to be able to equal or even exceed the energy density of the supercapacitor battery within ten years.

Of course, the disadvantage of self-discharge of supercapacitor batteries is also one of the problems that these scientists will have to overcome next.

Lithium batteries have strong storage stability for chemical energy, so they have a good capacity retention ability, and the monthly capacity loss can be controlled within 3% under normal circumstances, while the leakage current of supercapacitors is large, and the capacity loss may exceed 3% in just one day.

In addition to the two defects of energy density and self-discharge, supercapacitor batteries are basically slinging lithium batteries in other aspects, especially supercapacitor batteries can work in the range of -40~65 °C, while lithium battery operating temperature range is generally in the range of -30~60 °C, but when the battery is below 0 °C, charging the battery may cause lithium precipitation and lead to irreversible damage to the battery.

Therefore, the fuel cell power package provided by Yang Jie to the troops is equipped with supercapacitor batteries, and supercapacitor batteries are also provided on fuel cell vehicles, one is to cope with the extreme cold in the northern region, and the other is also for low power consumption, which does not require fuel cells to run at full load frequently, and in order to avoid the waste of braking energy, Huaxing Group has also developed a set of braking energy recovery system.

These braking energies are very high and can only be achieved with supercapacitor batteries.

The energy required for car braking is very large, but it needs to be greater than that of high-speed rail, especially when the high-speed rail enters the station for braking, at most it needs 300 kilowatt-hours of electricity once, and when it is less, there are more than 100 kilowatt-hours of electricity, which is equivalent to the electricity consumption of an ordinary family for a month, and the ordinary consumption of a station is twenty or thirty times a day, and if it is a large station, there must be hundreds of times.

Originally, this energy was wasted, Huaxing Group also collected these energies into supercapacitors, applied to the next outbound braking, braking energy feedback is just one of the advantages of supercapacitors, that is, the efficient use and recycling of energy, which is not possible for ordinary batteries.

The service life of ordinary batteries is only two or three years, even if they are not used, they must be removed, but the service life of supercapacitors can reach more than ten years, and Aode Technology has even increased the life of supercapacitor batteries by 25 years.

Although supercapacitor batteries are several times more expensive than ordinary batteries, considering the use of the whole life cycle, supercapacitors are the most cost-effective in the whole life cycle, with the lowest cost, higher efficiency and better safety.

Especially in the coldest part of the country, the coldest time is dozens of degrees below zero, and the power loss of ordinary batteries is very serious, which will cause the premature scrapping of the battery in serious cases, or it is impossible to hit the car.

However, Zhongyuan Automobile Group's cars now use supercapacitor batteries after the energy density of Aode Technology's supercapacitor batteries exceeds that of lead-acid batteries, so consumers in the northern region are favored by their vehicles.

From the perspective of energy storage properties, the energy conversion of lithium batteries depends on chemical reactions and belongs to chemical power sources, while the energy conversion of supercapacitors is realized through electric field changes and belongs to physical power sources.

Since supercapacitors do not rely on chemical reactions for energy conversion, they have the great advantages of faster charging rate, smaller internal resistance, more cycles, less temperature influence, and high safety.

Of course, the disadvantages of large self-discharge and low energy density of supercapacitors are also obvious, and they are energy storage devices that are just between ordinary capacitors and batteries in terms of energy density and power density.

However, through so many years of technology research and development, the shortcomings of the supercapacitor battery produced by Aode Technology Company have also been greatly improved.

Wan Zihao said to Yang Jie: "Yang Jie, now that we have matured in solid-state electrolyte technology, the development of solid-state batteries can be included in the key development direction of Aode Technology Company." ”

Electrolyte material is the core of all-solid-state lithium battery technology, at present, the research of Aode Technology Company in solid-state electrolyte mainly focuses on polymer materials, which have good high-temperature performance and have begun large-scale mass production.

Yang Jie nodded: "What President Wan said is right, this can indeed be included in one of the key directions of our future battery technology development." ”

Solid-state battery is a battery that uses solid electrodes and solid electrolyte, and its solid-state electrolyte is non-flammable, non-corrosive, non-volatile, non-leaking, performs well at high temperatures, has higher safety, and can greatly reduce the probability of spontaneous combustion of the battery.

Yang Jie also doesn't want the battery of his company's electronic products to happen. 11