Interesting. One question: Sounds good, but how long does one cycle last? A couple of seconds? A few hours? The difference here might be a week of lifetime vs a year of lifetime. Edit: I found the...
Interesting.
One question:
In the lab, the team has proven the system can withstand at least 7,000 charging-discharging cycles, with a 30 percent loss in efficiency over that time. The researchers estimate that they can readily improve that to 20,000 to 50,000 cycles.
Sounds good, but how long does one cycle last? A couple of seconds? A few hours? The difference here might be a week of lifetime vs a year of lifetime.
Edit: I found the corresponding paper online, which mentions a cycle capture time of about 1000 seconds. Figure 6b shows a capture time of 1000s and a release time of about 800 seconds, so a full cycle would be 1800s.
Assuming the '7000 cycle' claim indeed means a full cycle of 1800s this would mean their device would lose only 30% capacity after about 20 weeks of non-stop runtime. That's impressive.
Interesting.
One question:
Sounds good, but how long does one cycle last? A couple of seconds? A few hours? The difference here might be a week of lifetime vs a year of lifetime.
Edit: I found the corresponding paper online, which mentions a cycle capture time of about 1000 seconds. Figure 6b shows a capture time of 1000s and a release time of about 800 seconds, so a full cycle would be 1800s.
Assuming the '7000 cycle' claim indeed means a full cycle of 1800s this would mean their device would lose only 30% capacity after about 20 weeks of non-stop runtime. That's impressive.