Researchers Create Pure Lithium Anode, “The Holy Grail” For Battery

July 30th, 2014 § Comments Off on Researchers Create Pure Lithium Anode, “The Holy Grail” For Battery § permalink

Lithium-ion battery pack for 2014 Chevrolet Spark EV electric carLithium-ion battery pack for 2014 Chevrolet Spark EV electric carEnlarge Photo

Existing lithium-ion batteries rely on the movement of lithium ions between the anode and cathode–and back–as the battery charges and discharges.

It’s one of the best options we have for powering electric vehicles (and most consumer electronic devices, for that matter) but there’s still room for improvement.

Researchers at Stanford University have published a report in the Nature Nanotechnology journal detailing the creation of a pure lithium anode, potentially boosting battery efficiency by a large margin over today’s units.

According to Phys.org, a pure lithium anode is considered the ‘Holy Grail’ of battery design, returning the usual improved-battery benefits: higher energy density, lighter weight and more power.

In an existing lithium-ion battery, the anode is typically made of graphite or silicon. These are largely used for their stability, rather than their efficiency. » Read the rest of this entry «

Chevrolet reveals 119mpge fuel economy rating for Spark

April 29th, 2013 § Comments Off on Chevrolet reveals 119mpge fuel economy rating for Spark § permalink

Chevrolet may just have “sparked” interest in its latest electric vehicle: by revealing a combined fuel economy rating of 119mpge.
The 2014 edition of the Chevrolet Spark EV (pictured) will have an estimated range of 82miles when fully charged: and with the 119mpge fuel economy figure will officially be one of the most fuel efficient electric vehicles on the market. It falls only marginally behind the Scion iQ EV with 121mpge; and ahead of the Honda Fit EV with 118mpge; the Fiat 500e with 116mpge; and the Mitsubishi i-MiEV at 112mpge.

In addition, the Chevrolet Spark EV is set to be the first vehicle on the market to offer the SAE combo charger for DC fast charging: this will enable it to recharge to 80 per cent of its capacity in a meagre 20minutes. The battery system consists of a 21kWh lithium-ion battery pack with a limited warranty of 100,000miles – and it is able to handle multiple DC fast charges every day.
Charging meanwhile, can be managed and monitored daily using a smart phone application.

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