Battery is a very marketable project, which can be said to be everywhere, including satellites in the sky. At present, the battery is large in size, large in size, low in power and short in life. If you can make batteries several times more than those on the market, then you will occupy the earth and space, so I think the slogan should be "surpass yourself; Light up the universe, but you can also modify it according to your own preferences. I think this is your ultimate goal.