A new technique developed at Berkeley Lab’s Advanced Light Source could help scientists better understand and improve the materials required for high-performance lithium-ion batteries that power EVs and other applications. The technique, which uses soft X-ray spectroscopy, measures something never seen before: the migration of ions and electrons in an integrated, operating battery electrode. It was developed by a team of Berkeley Lab scientists including Wanli Yang (right) of the Advanced Light Source and Gao Liu (left) of the Environmental Energy Technologies Division. More>
Posts Tagged ‘Environmental Energy Technologies Division’
Jake Oster, deputy chief of staff for Congressman Peter Welch of Vermont, first contacted the Lab in October to thank EETD researchers Jennifer Logue, Max Sherman, Iain Walker and Brett Singer for their report about the benefits of retrofitting homes. Oster is point person for the congressman’s efforts to move legislation to incentivize weatherization and other energy efficiency improvements. Last week, he visited the Lab to meet with Sherman, Walker and Alecia Ward, EETDs Lead for Program and Business Development.
Current official inventories of methane emissions, a potent greenhouse gas released from landfills, livestock ranches and oil and gas facilities, may be underestimated both nationally and in California by a factor of about 1.5, according to new research. A pair of new studies by EETD’s Marc Fischer and colleagues strongly suggest that methane emissions from oil and gas production may account for a significant portion of the underestimated emissions both in California and nationwide, and may be as much as five times greater than the current inventory estimates of EDGAR (Emissions Database for Global Atmospheric Research), the most comprehensive global methane database. More>
Donald Lucas of the Environmental Energy Technologies Division is among the experts featured in the new HBO documentary film “Toxic Hot Seat.” The movie explores the dangers of chemical flame retardants, which, they say, don’t seem to stop fires and make people sick. Lucas demonstrates how furniture foam that has fire retardants added to it can still burn, and that when covered with fabric the burning rate can increase. The fabric/foam combination also has a flame that produces more soot and toxic byproducts. The opening scene and a few other shots were filmed in Building 70. The documentary airs on Monday at 9 p.m. More>
Researchers in EETD have demonstrated in the laboratory a lithium-sulfur (Li/S) battery that has more than twice the specific energy of lithium-ion batteries, and that lasts for more than 1,500 cycles of charge-discharge with minimal decay of the battery’s capacity. This is the longest cycle life reported so far for any lithium-sulfur battery. Demand for high-performance batteries for electric and hybrid electric vehicles capable of matching the range and power of the combustion engine encourages scientists to develop new battery chemistries that could deliver more power and energy than lithium-ion batteries, currently the best performing battery chemistry in the marketplace. More>
Scientists in the Environmental Energy Technologies Division are working with the University of New Mexico to ease the way for the seamless integration of self-generated electricity, thermal energy or both (known as distributed energy resources, DER) into buildings. DER enables private companies, universities and other public institutions, as well as homes to generate their own power from sources as varied as solar panels or wind turbines, combined heat and power plants, or simple natural gas or diesel generators. More>
Most buildings in the U.S. don’t perform as energy-efficiently as they could simply because energy-using equipment in the building have never been set up to maximize energy performance. EETD’s Jessica Granderson and others have developed a technological solution: the Retrocommissioning Sensor Suitcase. “The Suitcase,” she says, “is a turn-key hardware and software solution that non-experts can use to generate low or no-cost recommendations automatically on how to improve a building’s operating costs, comfort and energy performance.” More>
A newly published study on pollutant exposures from natural gas stoves was featured in the Los Angeles Times. The study, published in Environmental Health Perspectives, found that 62 percent of households using gas burners without range hoods are routinely exposed to excess levels of nitrogen dioxide, 9 percent to carbon monoxide and 52 percent to formaldehyde. Co-author Brett Singer was quoted as saying: “Even in Los Angeles, those pollutants don’t exceed air quality standards outdoors. But inside homes they do.” Other Lab co-authors were Jennifer Logue and Agnes Lobscheid. For more on Berkeley Lab’s work on indoor air quality, including articles, videos and other resources, visit indoorair.lbl.gov.
Representatives of Berkeley Lab and the Greenhouse Gas Inventory and Research Center of Korea have signed a Memorandum of Understanding to explore potential areas of collaboration. For Berkeley Lab, the MOU is centered in its Environmental Energy Technologies Division (EETD). The areas of potential cooperation include energy sector planning, policy analysis, energy modeling. More>