New battery management technology could boost Li-ion capacity by 40%, quadruple recharging cycles
Long-life laptop battery the tech industry doesn’t want you to have ?
Fed up with the dwindling battery life of his BlackBerry Bold 9000,
Carleton University chemistry student Tim Sherstyuk took a
straightforward problem to his electrical engineer dad, Nick: Could the
two of them come up with the technology to make a standard lithium-ion
battery last longer?
...
After a year of trial and error, the Ottawa-based father-son duo hit an
engineering bull’s-eye. By pairing batteries with their own special printed circuit board,
they were able to increase a battery’s capacity by 30 per cent. Their
battery management system also boosted the number of recharging cycles
available. Today’s standard lithium-ion batteries are good for about 300
cycles; the Sherstyuks boosted this to an amazing 2,500.
For a fuller account, please see
New battery management technology could boost Li-ion capacity by 40%, quadruple recharging cycles
and
Long-life laptop battery the tech industry doesn’t want you to have
I came across this news about battery management because I am currently researching the same topic for lead-acid technologies.
My first impression is that the problem with SEI - solid electrolyte interphase - formation is potentially solvable, and this team appears to have gone a long way to solving it. It is akin to the badly-named sulphation problem with lead-acid batteries, which is really a matter of pore blockage due to crystal accretion.
