Posts Tagged: Batteries

Sticky stuff could make Li-ion batteries cheaper and greener

Lithium-ion batteries typically include three components: active materials, conductive additives, and binders. A team of researchers at the University of Delaware recently discovered a sticky conductive material that could eliminate the need for binders. “The problem with the current technology is that the binders impair the electrochemical performance of the battery because of their insulating… Read more »

Porous Power’s new microporous membrane will boost Li-ion battery performance

Q&A with Bernard Perry of Porous Power Technologies. In 2006, Porous Power Technologies was formed around a new microporous membrane material designed specifically for use as a lithium-ion battery separator. At that time, most battery separator materials were originally intended for other applications and adapted when the lithium-ion market began to develop. The company’s founders saw an… Read more »

Creatively displaying BMS data

Brian Gallagher has had a variety of engineering and management roles designing human machine interfaces (HMIs) in the biotech and automotive industries. Most recently, he is the cofounder of Andromeda Interfaces, which develops HMIs for many different industries. With the adoption of lithium-ion battery technology in electric vehicles, the role of battery management systems (BMS) has become… Read more »

South Korean team develops coated LMO cathode that lasts longer at high temperatures

The quest for the better battery involves ongoing research on improving and optimizing materials used for lithium-ion cells. One such material is LiMn2O4 (LMO), which offers high power and low cost, but cell life at high temperatures can be problematic. In a paper in Nano Letters, a team from the Ulsan National Institute of Science… Read more »

New anode extends the life of lithium-sulfur batteries

Many researchers are interested in lithium-sulfur batteries, because they can offer up to four times the energy density of lithium-ion chemistries. However, current lithium-sulfur batteries have a much shorter lifespan. In a paper published this week in Nature Communications, a team from the Department of Energy’s Pacific Northwest National Laboratory (PNNL) described a “hybrid” anode… Read more »

Polypore and Sumitomo sign license agreement for battery separator coating

Polypore International and Sumitomo Chemical have entered into a Settlement and License Agreement which ends outstanding litigation between the two companies. Last February, Charlotte-based Polypore’s Celgard unit filed a patent-infringement suit against Sumitomo over Celgard’s lithium-ion battery separators, which are designed to prevent short circuits and limit safety problems from overheating. Under the new License… Read more »

Report: sharp growth for battery materials market, driven by EV industry

Dallas, Texas market research and consulting company MarketsandMarkets predicts that the global battery materials market will be worth $11.3 billion by 2018. In 2012, its value was $5.1 billion, and the firm estimates a 13 percent compound annual growth rate from 2013 to 2018. They expect electric vehicles to be the key revenue generators for… Read more »

New microscopy technique gives researchers a better look inside batteries

Electricity may seem invisible, but storing it in batteries has some very physical effects. As a battery is charged and discharged, electrons and ions rush around from place to place, sometimes causing electrodes to change their shapes over time. As researchers experiment with improved electrode materials, it’s critical to get a microscopic view of what… Read more »

New film-type battery cells are flexible and energy-dense

Sekisui Chemical has developed a film-type lithium-ion battery that incorporates several promising innovations. It features a silicon anode, and uses the company’s original materials technology to enable the application of the gel-type electrolytes using a coating process instead of the standard vacuum infusion process. According to the company, the flexible film-type cells can be installed… Read more »

Researchers demonstrate major advance in lithium-sulfur battery chemistry

Researchers at the Lawrence Berkeley National Laboratory have demonstrated a lithium-sulfur (Li/S) battery that has more than twice the specific energy of current lithium-ion batteries, and that lasts for more than 1,500 charge/discharge cycles with minimal capacity loss. This is the longest cycle life yet reported for any lithium-sulfur battery. The results were reported in the… Read more »