Researchers Developed Low Cost Battery From Graphite Waste
https://www.electronics-lab.com/researchers-developed-low-cost-battery-graphite-waste/
Lithium-ion batteries are flammable and the price of the raw material is increasing. Scientists and engineers have been trying to find out a safe yet efficient alternative to the Lithium-ion technology. The researchers of Empa and ETH Zürich have discovered promising approaches as to how we might produce powerful batteries out of waste graphite and […]
uBoost Single AA to 3.3v 100mA Power Supply
https://www.electronics-lab.com/uboost-single-aa-3-3v-100ma-power-supply/
µBoost is a Single AA powered, 3.3v 100mA power source and flashlight and it can run low power devices. µBoost is small, portable, 3.3v 100mA power source for low power devices like Arduino Mini. It has white power LED and can usable as flashlight. Also it has “Battery OK” indicator that asserts when the battery […]
Rechargeable Magnesium Batteries – Safer And Cheaper Than Li-ion Batteries
https://www.electronics-lab.com/rechargeable-magnesium-batteries-safer-cheaper-li-ion-batteries/
Researchers at the University of Houston reported in the journal Nature Communications the discovery of a new design that significantly improves the development of a battery based on magnesium. Magnesium batteries are considered as safe resources of power supply – unlike traditional lithium-ion batteries. They are not flammable or subject to exploding – but their ability to store energy is […]
DIY Arduino Battery Capacity Tester
https://www.electronics-lab.com/diy-arduino-battery-capacity-tester/
deba168 @ instructables.com writes: I have salvaged so many old lap-top batteries ( 18650 ) to reuse them in my solar projects.It is very difficult to identify the good cells in battery pack.Earlier in one of my Power Bank Instructable I have told, how to identify good cells by measuring their voltages, but this method […]
Integrated 36V buck battery charger provides seamless backup power
https://www.electronics-lab.com/integrated-36v-buck-battery-charger-provides-seamless-backup-power/
By Graham Prophet @ eedesignnewseurope.com: LTC4091 is a complete lithium-ion battery backup management system for 3.45V to 4.45V supply rails that must be kept active during a long duration main power failure. The LTC4091 employs a 36V monolithic buck converter with adaptive output control to provide power to a system load and enable high efficiency […]
Carrageenan, a seaweed derivative, can stabilize lithium-sulfur batteries surprisingly
https://www.electronics-lab.com/carrageenan-seaweed-derivative-can-stabilize-lithium-sulfur-batteries-surprisingly/
Lithium-sulfur batteries are suitable for both vehicle and grid applications as they are ultra-cheap, high-energy devices. Sulfur is a very low-cost material and the energy capacity is much higher than that of lithium-ion. So, lithium-sulfur is one chemistry that can possibly meet the demand for energy storage at a cheap price. However, the serious problem is, lithium-sulfur […]
Cell Phone Can Make Calls Without a Battery
https://www.electronics-lab.com/cell-phone-can-make-calls-without-battery/
Vamsi Talla at the University of Washington in Seattle build a mobile phone that can rely only on energy that it could harvest from its surroundings. Imagine if you can send SMS or make a call when you are out of battery. That’s what’s the team trying to achieve. Ambient light can be turned into […]
6V Lead Acid Battery Charger using BQ24450
https://www.electronics-lab.com/6v-lead-acid-battery-charger-using-bq24450/
6V Lead acid (SLA) battery charger project is based on BQ24450 IC from Texas instruments. This charger project takes all the guesswork out of charging and maintaining your battery, no matter what season it is. Whether you have a Bike, Robot, RC Car, Truck, Boat, RV, Emergency Light, or any other vehicle with a 6v […]
Solar Power Module v2
https://www.electronics-lab.com/solar-power-module-v2/
Chip McClelland @ hackster.io published his solar li-po battery charger based on MCP73871 to manage the solar and DC charging of the LiPo battery, TPS63020 Buck-Boost Converter and Maxim 74043 LiPo Fuel Gauge. He writes: I build connected sensor which are often deployed in local parks where there is no access to utility power. Over the […]
Fuel gauge needs no battery characterization
https://www.electronics-lab.com/fuel-gauge-needs-no-battery-characterization/
by Susan Nordyk @ edn.com The MAX17055 single-cell fuel gauge from Maxim not only eliminates battery characterization, but also keeps SOC (state-of-charge) error to within 1% in most scenarios. With its ModelGauge m5 EZ algorithm, the device provides tolerance against battery diversity for most lithium batteries and applications. It also allows system designer’s to decide […]