Huawei's Watt Lab unveiled at the 56th Battery Symposium in Japan some new quick charging lithium-ion batteries.
The Chinese company said that quick charge can be done in minutes - about 10 times faster than current batteries, although in the demonstration videos you can spot that a much larger charger is needed.
A 600 mAh smartphone battery was charged in 2 minutes to 68%, while the larger 3,000 mAh charged in 5 minutes to 48% (see videos below).
Interesting is that electric vehicles were mentioned as one of many applications for those new batteries (for 50% five minutes recharge we would need over 500 kW in the case of 90 kWh Tesla or over 144 kW in case of 24 kWh LEAF).
"Watt Lab, which belongs to the Central Research Institute at Huawei Technology Corporation Limited, unveiled their new quick charging lithium-ion batteries at the 56th Battery Symposium in Japan. Using next generation technology, these new batteries have achieved a charging speed 10 times faster than that of normal batteries, reaching about 50% capacity in mere minutes.
Huawei presented videos of the two types of quick charging lithium-ion batteries: one battery with a 600 mAh capacity that can be charged to 68% capacity in two minutes; and another with a 3000 mAh capacity and an energy density above 620 Wh/L, which can be charged to 48% capacity in five minutes to allow ten hours of phone call on Huawei mobile phones. These quick charging batteries underwent many rounds of testing, and have been certified by Huawei's terminal test department.
According to Huawei, the company bonded heteroatoms to the molecule of graphite in anode, which could be a catalyst for the capture and transmission of lithium through carbon bonds. Huawei stated that the heteroatoms increase the charging speed of batteries without decreasing energy density or battery life.
Huawei is confident that this breakthrough in quick charging batteries will lead to a new revolution in electronic devices, especially with regard to mobile phones, electric vehicles, wearable devices, and mobile power supplies. Soon, we will all be able to charge our batteries to full power in the time it takes to grab a coffee!
Huawei's Watt Lab works closely with industry partners to promote technological development and pursue a new energy era. Watt Lab specifically focuses on the technical development of energy storage to support a better connected world via sufficient energy."
Demo 1 (600 mAh capacity, charged to 68% capacity in two minutes):
Demo 2 (3000 mAh capacity, charged to 48% capacity in five minutes):