Graphene’s huge specific surface area enables it to carry more li-ions and get/loss li-ions more quickly, therefore provides the essential physical foundation for battery to have bigger capacity and quicker charge/discharge speed.
Battery with graphene as negative electrode has very good charge/discharge rate but very bad cycle life. Researchers are always trying to find an appropriate negative electrode material so as to combine advantages such as fast charging/discharging, long cycle life, high energy density and low cost together.
Recently, Spain’s El Mundo has reported that Spain’s university has developed a graphene battery which has combined all the above advantages together. It will be first tested in a German’s automotive enterprise.
On condition that the report is true, this battery will be quite promising. If the recharging time is as short as refueling time, then the charging stations could take the place of gas stations, and electric vehicles could take the place of fuel vehicles.
Conclusion
Everything real is rational. The lead acid battery and lithium batteryhttp://www.sacredsun.com/productsdetaillithium_125_125_125_125.html are still dominating the market of electric vehicles, not because the manufacturers are stupid, but for other technologies are not mature or lack supporting industrial chain.
We need to be patient to wait for the next breakthrough in this area.
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