tools, materials & knowledge for model makers
A battery pack design could be for a single or group of cells arranged in series and parallel, depending on application this may include: thermal control, electrical switching and management system. In it’s simplest for a phone battery pack design is a single cell that has temperature and voltage monitoring. The battery pack design for … Read more
The Lead Acid Battery is a battery with electrodes of lead oxide and metallic lead that are separated by an electrolyte of sulphuric acid. The overall reaction is: PbO2 + Pb + 2H2SO4 <=> 2PbSO4 + 2H2O Some batteries manufactured for use in very hot or very cold climates may have stronger or weaker acid. … Read more
The Nickel Metal Hydride battery has a nickel-hydroxide cathode, a metal hydride (a variety of metal alloys are used) anode, and aqueous potassium hydroxide electrolyte. This is a rechargeable battery chemistry that has been superseded by lithium ion, but has seen a lot of use in Toyota hybrids. The overall reaction is: 2NiOOH + MH … Read more
In a rechargeable lithium ion battery lithium ions move from the negative electrode to the positive electrode during discharge, and back when charging. The cathode is a lithium transition metal oxide, eg manganese or cobalt or a combination of transitional metals. The anode is a graphite-based material, which can intercalate or release lithium. When charging … Read more
I was wondering what I could run off grid and wanted to start with an off-grid phone experiment, not really that radical, but more something for me to test the latest technology and to do the calculations around batteries, solar panels and power consumption – does it really add up? 2nd December 2017: Samsung Phone … Read more