Graphite rods are generally used for AC rechargeable batteries, and the energy density is very low. A single rod of graphite weighs less than a stack of pencils. But many mobile charging stations need to be used for a long time portable charging cars, and some people have tried to replace pencils with graphite rods. In addition, in the early years, most radios had a radio function, which required frequency modulation and charging, and both of them are radioactive elements. Graphite rods and silicon rods are better choices. But at present, it also depends on the generator, and the risk is relatively large.

You can, but this method solves all problems, has no significant disadvantages, and does not add extra energy. It's just that shipping is expensive.

It can be recharged and can be used as an electronic graphite rod, which is also a product of the minimalist style of graphite. In addition, it can be made into dispersed pressure vessels with other graphite rods for use in lithium batteries.

Just tell me how great an advantage graphite sticks can be for making e-books. The only advantage is to install a scale!

Can you imagine writing calligraphy with a graphite stick, don't look for graphite, I can't write it.

Graphite rods can be charged, but they also have another function, which is resistance. Just like a TV, the TV can display data, so if graphite is used as a resistor as a material, it can achieve equal or higher efficiency. The key is still a question of efficiency.

Now this is generally the solution for USB charging. Generally, the power bank is used to make a mini circuit breaker, and then the USB port is used to make a resistor to charge

The battery can be used as a communication hub, and it can be used as a communication component alone. This is not something that graphite sticks can achieve.

Graphite rods have a wide range of uses, resistors are just more convenient and are used comprehensively in practical applications. If it is done alone, chemical corrosion will inevitably occur. The graphite rod is not as powerful as everyone imagines. The design is precise, and it is still an industrial product. Both cost and demand must be taken into account. Imagine wrapping a graphite rod with a graphite shell. Resistance = 0 That's it.