by Iris Su, Project Engineer II, Inventus Power A recent change in Li-ion battery pack safety is the shift from a focus on just prevention to one that emphasizes prevention and mitigation. Battery pack designers who were once focused on preventing thermal runaway (TR) are now taking increasing measures on preventing single cell failures within […]
Applying large banks of supercapacitors
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 […]
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