Lithium-Ion Battery Warms Up, Operates In Subzero Temperatures
https://www.electronics-lab.com/lithium-ion-battery-warms-up-operates-in-subzero-temperatures/
Charles Q. Choi @ spectrum.ieee.org discuss about a new type of li-ion battery able to work in low temperatures. A new “all-climate” lithium-ion battery can rapidly heat itself to overcome freezing temperatures with little sacrifice in energy storage capacity and power, researchers say. This advance might enable applications for which high-performance batteries are needed in […]
Battery Powered Frequency Meter (0 to 20kHz)
https://www.electronics-lab.com/battery-powered-frequency-meter-0-to-20khz/
The circuit is a simple digital frequency meter that is made of a frequency-to-voltage converter and an analog-to-digital display converter that can be operatedfrom a single 9-volt battery. The TC7126 ADC generates the voltage required by the TC9400 FVC with internal regulators. The TC7126 is designed to directly drive a 3-1/2 digit, non-multiplexed LCD display […]
Supercapacitors to replace batteries?
https://www.electronics-lab.com/supercapacitors-to-replace-batteries/
by Martin Cooke @ elektormagazine.com: It was reported last year that researchers at Rice University in the US, led by chemist James Tour had developed a method of producing a form of graphene on commercial polyimide plastic sheet by zapping it with a laser. The process is called LIG (Laser Induced Graphene). The resulting graphene layer […]
One step closer to the ‘ultimate battery’
https://www.electronics-lab.com/one-step-closer-to-the-ultimate-battery/
Erica Torres @ edn.com discuss about lithium-air batteries that looks promising for future use. Although scientists are still working toward replacing lithium-ion (Li-ion) batteries with lithium-air (Li-air), or lithium-oxygen, batteries, researchers at the University of Cambridge have developed a lab-based demonstrator of such a battery. It is safe to say we still have another decade before […]
LiFePO4 charger
https://www.electronics-lab.com/lifepo4-charger/
Markus Gritsch shared his LiFePO4 charger project in the forum: Since I really like using LiFePO4 AA and AAA batteries in some of my projects, I finally gave in and built a dedicated charger for them. Previously I used a lab power supply to mimic the constant current/constant voltage charging curve, which worked also fine. […]
Not a battery, not a cap: Murata’s small energy [storage] device
https://www.electronics-lab.com/not-a-battery-not-a-cap-muratas-small-energy-storage-device/
by Graham Prophet @ edn-europe.com: To meet what the company sees as a gap in the available range of energy storage solutions, Murata has developed the UMAC, a small, high-capacity cylinder-type energy device for use in wearable and wireless sensor applications. Although lithium-ion based, Murata differentiates it from a battery. The UMAC is a miniature device […]
Power Management Solutions: Battery Chargers
https://www.electronics-lab.com/power-management-solutions-battery-chargers/
Maurizio @ dev.emcelettronica.com writes: Out of all portable devices, the most numerous are the mobile phones (Figure 1). Most of them feature Li-ion or Li-polymer accumulators and Freescale has a broad range of charger ICs dedicated to supporting all the phases of a complete recharge cycle. Generally speaking the charging of a mobile phone is […]
Charger interface IC avoids handset overheating at fast-charge rates
https://www.electronics-lab.com/charger-interface-ic-avoids-handset-overheating-at-fast-charge-rates/
by Graham Prophet @ edn-europe.com: Power Integrations offers a charger interface IC compatible with Qualcomm’s Quick Charge 3.0 specification; PI says its CHY103D IC optimises efficiency to prevent handset overheating during high-speed charging. Added to the ChiPhy charger-interface IC family, PI saya this is the first IC for off-line AC-DC chargers compatible with the Quick Charge […]
Arduino Battery Shield
https://www.electronics-lab.com/arduino-battery-shield/
This instructable is about making battery shield for Arduino. Arduino Battery Shield – [Link]
IC monitors multicell battery packs
https://www.electronics-lab.com/ic-monitors-multicell-battery-packs/
by Susan Nordyk @ edn.com: The ISL94203 battery-pack monitor IC from Intersil monitors, protects, and cell-balances three- to eight-cell rechargeable battery packs, supporting Li-ion CoO2, Li-ion Mn2O4, and Li-ion FePO4 chemistries. Its internal state machine has five preprogrammed stages that accurately control each cell of a battery pack to extend operating life. In addition to […]