Because we need as much help as we can possibly get to get the costs down of our batterysolution and get the reliability up.
因为我们需要的很多帮助，因为我们有可能去获得成本降低的电池解决方案的可靠性，并得到了。
2
There is, though, another way to recharge a flow battery: pump out the discharged electrolyte and replace it with a solution that has been recharged elsewhere.
另外，还有一种方法可以使流体电池重新充电：将释放电量的电解质溶液抽空，然后重新充入溶液。
3
A team of engineers from Cambridge think they have a potential solution: a giant battery that can store energy using gravel.