Green Car Congress

FEBRUARY 4, 2014

A major barrier to the use of high energy capacity silicon in a lithium-ion battery is the volumetric expansion of silicon under lithiation and delithiation, which results in electrode degradation and capacity fade. Silicon (shown in grey) is capable of holding 10 times as many lithium ions (shown in pink) as currently-used anodes.

Li-ion 199

Li-ion Insight Lithium Ion Batteries 199

Green Car Congress

OCTOBER 15, 2012

billion from fiscal years 2009 through 2012, supported a variety of technologies, uses, advancement activities, and goals, according to the report. Several types of recipients were eligible for funding, such as private industry, universities, and federal labs, through contracts, grants, and other mechanisms. through 2012.

Energy Storage 231

Energy Storage 2009 2012 Energy 231

Green Car Congress

JANUARY 30, 2012

A team from Stanford University and Ruhr-Universität Bochum have demonstrated the novel concept of a “desalination battery” that uses an electrical energy input to extract sodium and chloride ions from seawater and to generate fresh water. A constant current is then applied in order to remove the ions from the solution.

Concept 246

Concept Batteries Battery Sodium 246

Green Car Congress

AUGUST 10, 2012

Researchers at Xi’an Jiaotong University in China have developed a new direct borohydride fuel cell (DBFC) that shows a peak power density of 663 mW·cm -2 at 65 °C (149 °F)—an increase in power density by a factor of 1.7 Source: Ma et al. 2010) Click to enlarge. compared to classic DBFCs. —Yang et al.

Fuel 257

Fuel Power Powered Polymer 257

Green Car Congress

DECEMBER 4, 2013

Cycle performance of Li cells with (a, b) Se?, (c, New composite materials based on selenium (Se) sulfides used as the cathode in a rechargeable lithium-ion battery could increase Li-ion density five times, according to research carried out at the US Department of Energy’s Advanced Photon Source at Argonne National Laboratory.

Li-ion 225

Li-ion Energy Lithium Ion Lithium Sulfur 225

Green Car Congress

OCTOBER 26, 2012

Tin (Sn) shows promise as a robust electrode material for rechargeable sodium-ion (Na-ion) batteries, according to a new study by a team from the University of Pittsburgh and Sandia National Laboratory. Rechargeable Na-ion batteries work on the same basic principle as Li-ion batteries—i.e.,

Sodium 210

Sodium Li-ion Ni-Li Batteries 210

Green Car Congress

OCTOBER 24, 2012

Researchers at the University of Maryland have developed a nanocomposite material of amorphous, porous FePO 4 nanoparticles electrically wired by single-wall carbon nanotubes as a potential cathode material for sodium-ion batteries (SIBs). V lower than that of the corresponding Li voltages. eld of Na-ion batteries.

Sodium 231

Sodium Maryland Li-ion Lithium Ion 231