Human civilization continues to progress, and the application of energy is also constantly improving, safer and more efficient. At present, energy applications are transitioning from fossil fuel energy to green energy, and fuel vehicles are gradually switching to electric vehicles, and with it, the use of batteries has increased dramatically.

At present, most of the electric vehicles and energy storage systems use lithium-ion batteries, although they have high energy density and fast charging speed, but there are certain safety problems and other problems. Therefore, the new energy industry is actively developing solid-state batteries, and it is expected that it can gradually improve and replace traditional lithium-ion batteries.

The main difference between solid-state batteries and lithium-ion batteries is the electrolyte. The electrolyte of lithium-ion is liquid and exists in the form of gels and polymers, making it difficult to reduce the weight of the battery. In addition, the energy of a single lithium battery pack is not high, so multiple battery packs must be connected in series to further increase the weight. The cost of engineering, manufacturing and installing battery packs accounts for a large proportion of the overall cost of electric vehicles.

In addition to weight issues, electrolytes are also flammable, unstable at high temperatures, have thermal runaway problems, and can lead to serious fires in the event of a car accident. The electrolyte is also easy to freeze at low temperatures, reducing the battery life. In addition, the electrolyte will corrode the internal components of the battery, and the process of charging and discharging will also produce dendrites, reducing the capacity, performance and life of the battery.

Advantages of solid-state batteries

1. The electrolyte of solid-state batteries is solid and has high energy density.

2. There is no heavy liquid electrolyte inside the solid-state battery, but a solid electrolyte in the form of glass, ceramics or other materials. The overall structure of solid-state batteries is similar to traditional lithium-ion batteries, and the charging and discharging methods are similar, but because there is no liquid, the battery is tighter, smaller in size, and the energy density increases. If the lithium-ion battery in the electric vehicle is replaced by a solid-state battery of the same volume, the capacitance can theoretically be increased by more than 2 times.

3. The weight of solid-state lithium batteries is light, and there is no need for lithium-ion battery monitoring, cooling and insulation systems, and the chassis can free up more space for batteries, so that the endurance of electric vehicles is greatly increased.

4. Solid-state batteries charge faster than lithium-ion batteries, have no corrosive problems, and have a longer lifespan. Regarding the operating temperature, solid-state batteries are thermally stable and do not freeze at low temperatures, which ensures the range of electric vehicles for users living in very cold areas in mid- and high-latitudes.

Disadvantages of solid-state batteries

1. High cost and not easy to mass production

2. The internal structure is compact, easy to be affected by thermal expansion and contraction, if the design is improper, it may affect the internal structure; The problem of crystal branches has also not been solved, and the battery structure may be destroyed.

3. It is expensive and not easy to mass produce. Solid-state batteries are not new inventions, they have been used in heart rate regulators, wearable devices and other fields, until recently, the industry has begun to study the application of solid-state batteries in large equipment such as electric vehicles, but electric vehicles are still dominated by lithium-ion batteries.

At present, the new energy industry is actively researching solid-state battery technology, including Tesla and other well-known enterprises, I believe that in the near future, solid-state batteries will be gradually developed, and the application will be more extensive, becoming a more efficient and safe new energy product.

iGo3600 launched by Foxtheon Energy 

At present, the iGo3600 launched by Foxtheon Energy is selling in the market, and the battery cells in its core technology use solid-state batteries, which makes this outdoor energy storage power station have the characteristics of small size, light weight and high safety performance.

In addition, because of the solid-state battery cell, this energy storage portable power station not only greatly increases the safety performance, but also enhances the service life, can ensure that after 1500 cycles, its capacity is still greater than 80% of the initial capacity, according to the calculation of charging and discharging twice a week, it can be used for more than 10 years. Such a portable power supply is put at home, and it does not need to be replaced for ten years, and the power is still surging.

It can be seen that solid-state batteries are outdoor energy storage products with battery cells, which have more superior performance and will usher in more and more widespread market recognition and growth.