Remove Energy Storage Remove Insight Remove Li-ion Remove Recharge
article thumbnail

IIT, Argonne team designs Li2O-based Li-air battery with solid electrolyte; four-electron reaction for higher energy density

Green Car Congress

Researchers at the Illinois Institute of Technology (IIT) and US Department of Energy’s (DOE) Argonne National Laboratory have developed a lithium-air battery with a solid electrolyte. The battery is rechargeable for 1000 cycles with a low polarization gap and can operate at high rates. —Kondori et al.

Li-ion 418
article thumbnail

Researchers directly visualize formation and disappearance of Li-O2 reaction products; insights to support development of rechargeable lithium-air batteries

Green Car Congress

During discharge and charge in UHV, Li ions reversibly intercalate/de-intercalate into/from the Li x V 2 O 5 electrode. During discharge, Li ions meet with reduced oxygen on the surface of the Li x V 2 O 5 electrode forming Li 2 O 2 , which is decomposed upon recharge. The rechargeable Li?air

article thumbnail

PNNL team develops electrolyte for high-voltage sodium-ion battery with extended longevity

Green Car Congress

However, the limited performance of sodium-ion batteries has hindered large-scale application. Now, a research team from the Department of Energy’s Pacific Northwest National Laboratory (PNNL) has developed a new electrolyte enabling a high-voltage sodium-ion battery with greatly extended longevity in laboratory tests.

Sodium 334
article thumbnail

Stanford team develops sodium-ion battery with performance equivalent to Li-ion, but at much lower cost

Green Car Congress

Stanford researchers have developed a sodium-ion battery (SIB) that can store the same amount of energy as a state-of-the-art lithium ion, at substantially lower cost. Here, we reveal the origin of the limited electrochemical performance of Na 2 C 6 O 6 and provide an effective path to achieve reversible four-sodium storage.

Sodium 186
article thumbnail

ASU team develops new solution for mitigating Li dendrite growth by tackling plating-induced residual stress

Green Car Congress

Lithium-metal batteries are among the most promising candidates for high-density energy storage technology, but uncontrolled lithium dendrite growth, which results in poor recharging capability and safety hazards, currently is hindering their commercial potential. Source: Wang et al. Click to enlarge. —Hanqing Jiang.

Li-ion 150
article thumbnail

BNL team develops very high capacity ternary metal fluoride cathode material for Li-ion batteries

Green Car Congress

Measurements also indicate that these new materials could yield a cathode that is extremely energy-efficient. However, transition metal fluorides, which contain the element fluorine plus one or more of the transition metals, such as iron and copper, have much higher ion-storage capacities than traditional cathodes.

Li-ion 150
article thumbnail

BMW ActiveE available for leasing in US in Fall 2011

Green Car Congress

Beginning in 2011 in the US, Europe and China, a test fleet of more than 1,000 BMW ActiveE vehicles, produced at BMW’s Leipzig plant, will provide further insights into the everyday use of the vehicle. With the BMW ActiveE developers are testing the storage cells and the storage electronics, which are to be installed later in the MCV.

BMW 186