Batteries

FDA Recognizes Two UL Battery Safety Standards for Medical Devices

UL (Underwriters Laboratories), Northbrook, IL, announced that the FDA has recognized two UL battery safety standards as consensus standards for medical devices incorporating lithium or nickel-based batteries. The two standards are UL 2054 - Standard for Household and Commercial Batteries, and UL 1642 - Standard for Lithium Batteries (Cells).

Posted in: MDB, News, Batteries, Electronic Components, Power Supplies, FDA Compliance/Regulatory Affairs, Medical

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New Chemistry Enables Longer-Lived Batteries

Researchers at the Department of Energy’s Oak Ridge National Laboratory (ORNL) in Tennessee say they have developed a new type of battery chemistry aimed at producing batteries that last longer than previously thought possible.

Posted in: MDB, News, Batteries, Electronic Components, Electronics, Power Supplies, Medical, Patient Monitoring

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Power for Extreme Environments

Specifying the ideal power management solution for remote wireless devices found in extreme environments and hard-to-access locations requires more ruggedized solutions. Fortunately, two viable options are now available: lithium thionyl chloride (LiSOCL2) chemistry that can operate for 40+ years, and energy harvesting devices coupled with special rechargeable lithium-ion batteries designed for extreme environments that can deliver up to 20+ years of battery life. Lithium thionyl chloride chemistry is proven for use in extreme environments.

Posted in: Articles, Batteries, Energy

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Nanomaterial Extends Lithium-Sulfur Battery Lifespan

A new nanomaterial could extend the lifespan of lithium-sulfur batteries, and therefore the driving range of electric vehicles.Pacific Northwest National Laboratory researchers added the powder to the battery's cathode to capture problematic polysulfides that usually cause lithium-sulfur batteries to fail after a few charges.Metal organic frameworks — also called MOFs — are crystal-like compounds made of metal clusters connected to organic molecules, or linkers. Together, the clusters and linkers assemble into porous 3-D structures. During lab tests, a lithium-sulfur battery with PNNL's MOF cathode maintained 89 percent of its initial power capacity after 100 charge-and discharge cycles. Having shown the effectiveness of their MOF cathode, PNNL researchers now plan to further improve the cathode's mixture of materials so it can hold more energy.SourceAlso: Check out other Materials tech briefs.

Posted in: News, Batteries, Electronics & Computers, Power Management, Materials, Metals, Nanotechnology

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Pomegranate Inspires Battery Design

Researchers at Stanford University and the Department of Energy’s SLAC National Accelerator Laboratory has invented an electrode designed like a pomegranate with silicon nanoparticles clustered like seeds in a tough carbon rind, that they say overcomes several obstacles to using silicon for a new generation of lithium-ion batteries.

Posted in: MDB, News, Batteries, Electronic Components, Electronics, Power Supplies, Medical

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Improving Safety of Lithium Ion Batteries

A team of Washington State University (WSU), Pullman, researchers has developed a gummy battery material that, they say, could dramatically improve the safety of lithium ion batteries.

Posted in: MDB, News, Batteries, Electronics, Power Supplies, Coatings & Adhesives, Materials, Medical

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Battery Gas Gauge

Linear Technology Corpora tion, Milpitas, CA, announces the LTC2943 multicell battery gas gauge, which makes direct measurements of 3.6V to 20V battery stacks. The LTC2943 is a true high voltage gas gauge that measures charge, voltage, current, and temperature to within 1% accuracy. It is best suited for professional power tools and portable medical equipment.

Posted in: MDB, Products, Batteries, Electronic Components, Electronics, Power Management, Manufacturing & Prototyping, Medical

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