It pays to know techniques for mitigating leakage current and over- voltages in uses where several supercapacitors work in parallel. Michele Kinman Advanced Linear Devices Inc. In applications requiring rapid charge/discharge cycles or short-term energy storage, you’ll often find supercapacitors connected in series or parallel. However, there’s a potential problem when supercaps are wired together […]
The 40-year battery pack
Not all primary batteries offer the low annual self-discharge rate needed for the lengthy lifespan of remote wireless devices consuming microamp-level currents. Sol Jacobs, Tadiran Batteries The vast majority of remote wireless devices are powered by primary (non-rechargeable) batteries that range from consumer-grade to industrial grade. Consumer-grade alkaline batteries deliver higher discharge rates of energy, […]
E-plane maker bets LiS battery technology could double the range of electric-powered flight
The best commercial lithium-ion batteries today deliver energy densities of around 250 Wh/kg. But battery chemistry oriented around lithium-sulfur could deliver double that figure. This potential improvement has brought electric plane-maker Bye Aerospace in Colorado to work with UK-based Oxis Energy on LiS cells able to provide in excess of 500 Wh/kg at 20-Ah capacity. […]
Better battery management: New technique measures electrochemical impedance of multi-cell stacked lithium-ion batteries
Researchers at Panasonic Corp. and Ritsumeikan University say they have developed a new battery management technology that measures a battery’s electrochemical impedance, which is an effective method of evaluating the residual energy of lithium-ion batteries in use. The technique is expected to be applied in applications characterized by numerous battery cells stack in series. Panasonic […]
Fuel cells put out 100 kW in land, sea applications
PowerCell Sweden AB has developed a new and improved version of its MS-100 fuel cell system which will be presented at the Fuel Cell Seminar & Energy Exposition in California on November 5th. The new MS-100 is 30 percent more compact and has improved operating life time as well as robustness for demanding applications on […]
Lithium-water rechargeable batteries said to be safer, more energy dense than lithium-ion
A new high-performance Lithium-water (Li-water) rechargeable battery technology has been developed for the energy storage and mobile device markets. According to co-developers Global Technology Systems, Inc. (GTS) and Dr. Boris Tsenter, the new Lithium-water technology will be safer, with longer run times and lower environmental impact than traditional Lithium-ion battery technology. The technology is expected […]
NiMH battery packs operate over wide temperature range
NiMH cells and finished battery packs offer two important features in conjunction with each other: Good performance at low temperatures and long life at high temperatures. Panasonic, one of the world’s leading battery manufacturing companies, a variety of NiMH cells with wide temperature ranges. These cells provide new electrode development which allow for a wide […]
Range of rechargeable Li-ion batteries powers up wearables and hearables
The task of opening or starting a modern car is now the task of miniature computers, which are designed by car manufacturers to perform an increasing number of functions. These smart keys can do quite a lot more. For example, they provide information about the oil level, the distance that can still be traveled, the […]
Charging electric vehicles, Part 1: The numbers
It’s nice to envision that recharging an electric vehicle is as straightforward as filling up an internal combustion vehicle, but it’s not: there are multiple charging, power, and connector options as well as limitations. You’re driving your internal-combustion (IC) car, and the gauge indicates it’s time to get “gas” (of course, it’s actually gasoline). So […]
New from the research lab: High-energy textile lithium battery
Researchers at The Hong Kong Polytechnic University (PolyU) say they have developed a highly flexible, high-energy lithium battery for wearable electronics with a myriad of applications. PolyU’s novel lightweight Textile Lithium Battery demonstrates an energy density of more than 450 Wh/L and flexibility — with a bending radius of less than 1 mm and foldability […]
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