The changes in chemical engineering are not coming fast enough. The difficulties are balancing tradeoffs in multiple factors. There is the battery’s Wh per kg. Then there’s the charge/discharge cycles. There are the toxicity, safety and fire hazards of the chemicals. And then there is the ability to develop a method of mass production. The replacement of carbon with silicon can extend the range many times. But the silicon swells up and the battery doesn’t last very long at all. There isn’t magic to this. There are thousands of chemicals that have to be tried and tested and there are millions of combinations, almost all of them not being usable. Then the ones that look promising have major drawbacks of one kind or another. This might take decades to find the better solution.