What are the advantages and disadvantages of graphene batteries and lithium batteries?

Advantages and disadvantages of graphene battery 1. Graphene battery is a single atomic layer flat film composed of carbon atoms with a thickness of only 0.34 nanometers. It is currently the lightest, thinnest and hardest nanomaterial known in the world with good light transmission. It can be folded; 2. Graphene is the most conductive material in the world. Graphene composite conductive powder is added to the traditional mobile phone lithium battery, which improves the rate charge and discharge performance and cycle life of the battery; 3. Safe and stable, new type Graphene polycarbon capacitor battery, after being fully charged, use a nail gun to short-circuit it without any reaction; it will not explode if it is burned on a fire; 4. The process characteristics are not compatible, and the graphene specific surface area is too large. , It will cause a lot of process problems in the process of dispersing and homogenizing the existing lithium batteries; 5. The graphene batteries on the market are not pure graphene batteries, but they are doped with some graphene related products on the basis of lithium batteries. Compared with traditional lithium batteries, the performance improvement it brings is only a little bit. In addition, the cost of graphene is very high, and its manufacturing process is also very high. The manufacturing process of graphene batteries It is still not mature enough. It is currently only in the laboratory stage and cannot reach the point of mass production. Advantages and disadvantages of lithium batteries 1. High energy density, its volume energy density and mass energy density can reach 450W.h/dm3 and 150W.h/kg respectively, and are still improving; 2. Long service life, 100% DOD charging The discharge can reach more than 900 times; when the shallow depth (30% DOD) is used for charging and discharging, the number of cycles has exceeded 5000; 3. It does not have the same memory effect as Ni-Cd and Ni-MH batteries, and the cycle performance is superior; 4. Compatibility with ordinary batteries is poor, because lithium batteries can only be replaced with 3 ordinary batteries (3.6V); 5. The cost is high, mainly because the price of the cathode material LiC002 is high. With the development of cathode technology With continuous development, LiMn204, LiFeP04, etc. can be used as the positive electrode, which is expected to greatly reduce the cost of lithium batteries. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: What are the differences between energy storage lithium battery pack and power lithium battery?