Now the problem of the battery, for example, there is the problem of energy density, power density, charging state, its safety, and health and so on. Of course, we know that the application of batteries is also very wide, for example, used in mobile phones, and fast charging. In addition, the state of charge is also very important, this is an aspect that we need to control, we can know where we are in the research stage, we can also know our current energy. In addition, the health of the battery, whether it has the problem of aging, and safety. You may also talk about the cost of the product, and I will explain more about it in the future.

In terms of energy density, we know that energy density has improved a lot since 1991, and we generally measure it in watts/kg. In the next 4-5 years, we hope that our energy density can reach 300 watts/kg. But we can see that our development is also very rapid. At the same time, probably the energy density that we can achieve right now is 250 to 300 watt-hours per kilogram, and the density of energy, this is the formula that we calculate, is amps per hour times voltage ÷ kilograms or liters. If you look at the previous formula, we're going to increase Q and U, and decrease M or V. So how do we increase Q, that is, we need to increase the capacity of new positive and negative electrodes, how do we increase Q of amperage 10, do we want to change the materials of some positive and negative electrodes?

At the same time, we also need to increase the utilization rate of the negative and positive electrodes, although we will use some new materials, but our utilization rate has not reached 100%. How do you increase the voltage? We also have to use a higher voltage positive electrode, a lower voltage negative electrode, maybe up to 5 volts, so maybe up to 100 to 200MV. In addition, we need to reduce the internal resistance, diaphragm and battery engineering design, especially with high-rate batteries, fast-charging batteries, this aspect is the need to solve these problems.

And how do you lower V? We need to use the positive and negative materials, we need to use a smaller capacity of the mass and degree, in addition we need to use a higher density of materials, so you can see the energy density has improved. Power density formula (PPT), how to increase the power density? It's very similar to what we just looked at, how to increase the current, with very fast reactive positive and negative materials, the current will react very fast. It's going to be faster when you embed and deembed the lithium, and it's going to be a little bit more soluble. This is very important for us if we increase the current power density. In addition, we need to increase the electronic material of the interface.

And, of course, here, we can use some structural materials, to have more active electronic materials, and of course this material can help us maintain its capacity over time, and this voltage and mass, which we've just talked about.

Nuclear power status, this is a very important aspect, let's say you have a battery here, or a battery in a computer, we can't say here to measure the nuclear power status of this battery in a very simple way, and that's the problem we're facing right now. But we don't have an effective, efficient way to test the nuclear power status of the battery. We now hope to have a better method, the calculation of nuclear power status (PPT), of course, if we have the capacity, we can calculate the nuclear power status of the battery, if we can further enhance the SOC, to evaluate the SOC, we need to evaluate very accurately, we need to detect the value of charging and discharging I, and the value of T, This T value is also very important, and is the health state of the battery aging? Is its capacity decreasing? So if we look at this equation, we see that the energy density, which is actually related to the energy density, N is the number of cycles. We can look at this is one of the battery state detection equation (PPT), is the current energy state ÷ the original energy state. We certainly want to get the best out of the battery, very low discharge, and we look at the equation of how to enhance the detection, we need to measure the energy, the power density, the length of time.