As an industrial maintenance mechanic for the past 20 years, I have seen maintenance and other trades revolutionized by the development of cordless tools. They help save time, money and can be used just about anywhere. Technologies have come alomg way since the early days of cordless tools. Larger voltages have resulted in more power and longer run times from batteries have helped the various tools become well-liked by tradesmen.
Among the only knocks against cordless tools continues to be the body weight. The normal 18 volt cordless drill has weighed up to six pounds previously. The tool manufacturers have listened to the tradesman who would like more power, more run time, along with a lighter tool. The growth of lithium-ion batteries for your cordless tool industry addresses all three of such consumer needs. Lithium-ion batteries offer a reduction in cordless battery weight of 25-40 % along with a total tool weight as much as 25 %. In the past, lots of the NiCad and NiMH batteries had to extend up to the handle of tools such as cordless drills, reciprocating saws, and circular saws. All of this translated into more overall weight for your battery and tool. With the development of lithium-iom technology, manufacturers can pack more power in Lithium Ion Battery Pack which is the same size/weight since the NiCad or NiMH or fit the same power because the NiCad or NiMH in a smaller battery pack.
Batteries today are omnipresent today they are invisible to us. Running in cars, digital cameras, drones, bulbs, mechanical tools, inverters, ships, trains, airplanes, windmills and even in satellites. The basic science behind battery is chemical energy converting to electrical power containing three main components: Anode, Cathode, and Electrolyte. The revolution in the battery over time are through several stages of chemical combinations and implementations. Beginning with Voltaic Pile to Daniell Cell, then from Lead-Acid to Nickel Cadmium battery, further evolving to Alkaline Battery, Nickel-Metal Hydride (NiMH) and after that finally to Lithium-ion battery. These can be found in all styles and sizes according to the requirement and its possibly packed power capacity.
Working: The Lithium-ion battery pack include graphite, oxygen, metal, and of course lithium, which runs in a cycle of discharging and charging. While producing energy, the lithium moves returning to the positive cathode across the electrolyte, and while charging, the ions move to the positive anode. This cycle repeats during the period of time as well as degrades the potency of the ions in offering the electric charge. The lithium-ion has 250Wh/kg (Watt-hours per kilogram) of energy while NiMH has mere 90Wh/kg. This is a vast difference for any small, portable and noiseless rechargeable battery.
Concern Parameters: The Ten parameters which a Lithium-ion battery pack’s development covers are high specific energy, specific power, affordable cost, longer life, better safety, wide temperature operating range, non-toxic, fast charging, lower self-discharge and longer shelf-life. In the early stages, the expense of a Li-ion battery was $3000 per kWh, while Lead-acid battery cost $150 per kWh. But through the years, because of multiple benefits of Li-ion battery pack, being 150Wh/kg more than the NiMH, the price is dramatically falling costing now $150 to $240 per kWh. Tesla’s goal would be to reach $100 per kWh on lithium-ion battery packs for that cars.
NEW ERA: In 2005, there is an overall of around $4900mil within the sales of lithium-ion batteries whilst in 2015 it is spiked to $15200mil wherein $4800mil is within automotive alone. It is actually expected to reach 10% on the total variety of cars on the road to be battery EVs by 2020 from .3% today and also to 35% by 2035. It comes with an even higher growth rate in China, Europe, and Japan as compared to the US. Statistically consuming 1900TWh for Li-ion battery pack by 2035, which is equivalent to power the whole individuals for 160days.
FUTURE: There exists still a great deal to develop the battery technology as through the years we haven’t come up with anything beyond lithium-ion battery packs configured in parallel or series to deliver the required voltage, power density, and capacity. We sure have changed the contents and also the proportion from the mixture of raw materials to enhance the capabilities, but nejbjh remains a lot of work that needs to be put in battery technology. The targets will be to reach over 700Wh/kg to that of 400Wh/kg our company is on today. By 2020, 75% of batteries are required to contain cobalt, in some capacity at least in addition to better anodes and enhancing electrolytes.
Over time, lithium ion battery pack will be cheaper and much more efficient to the current ones. Moreover, Lithium Air technology is at cultivation, which shall have 10times the energy density than Li-ion. The world for lithium ion battery pack isn’t going to end for the following half century at the very least, making it the highest developing area in technology.