Advantages of graphene batteries
1. It has a wide range of applications, and is widely used in mobile terminals, aerospace engineering, and new energy battery industries.
2. Due to its high conductivity, high strength, and ultra-thinness, graphene's advantages in the aerospace and specialized industries are also extremely significant. Recently, NASA developed a graphene temperature sensor for the aerospace industry, which can effectively detect nutrients in the high atmosphere of space and functional defects on space shuttles. Graphene will also play a crucial role in potential applications such as ultra-lightweight aircraft materials.
3. Graphene is the most suitable material for electrical conductivity in the world today. Adding graphene composite powder to traditional mobile phone lithium-ion batteries enhances the battery's rate capability, charge/discharge performance, and cycle life. 4. Safe, reliable, and stable. The new graphene polycarbonate capacitor battery, even when fully charged and short-circuited with a nail gun, shows no chemical reaction; it will not explode even when placed over a fire.
5. When electrons transmit data in graphene, they do not easily cause electron scattering. The electron density can reach 200,000 cm2/(V*s), which is about 140 times the electron density in silicon. Its conductivity can reach 104 S/m, making it the most suitable material for conductivity at indoor temperatures.
6. Its application time is four times that of traditional nickel-metal hydride batteries and twice that of lithium-ion batteries.
7. High charging efficiency, and its total weight is only a fraction of that of traditional batteries. In terms of charging speed, graphene batteries represent a significant performance improvement.
Disadvantages of graphene batteries
1. The process itself still has problems; it's not yet finished. There are compatibility issues; the large surface area of graphene can cause various problems in existing lithium-ion battery dispersion and homogenization processes.
2. Graphene batteries on the market are not pure graphene batteries. They are simply lithium-ion batteries with some graphene-related technologies mixed in. Compared with traditional lithium-ion batteries, the performance improvement is only slight. In addition, graphene is extremely expensive and its manufacturing process is particularly advanced. The manufacturing process of graphene batteries is still not mature enough to achieve mass production.
3. Traditional conductive materials like carbon/graphite are cheap, sold by the ton, while graphene is very expensive. At over a thousand yuan per gram, it's unaffordable for most companies, far exceeding the price of gold jewelry, and prohibitive for many consumers. Furthermore, graphene is a technology in the early stages of industrial development, and it may be another three to four years before it appears in electronic products.
4. Ingesting graphene can be harmful to the human body and may be toxic.
