Many people use the 18650 battery for a number of their electronic devices. These 18650 battery cells are known for their long lasting performance and their safety mechanisms which ensure that the device will function properly. Many leading brands are making these batteries for consumers like the Sanyo 18650 battery and Energizer 18650 battery all of which are actually what they call Lithium ion batteries. These Lithium Ion batteries have been providing rechargeable power to electronic devices for a long time now but when did they really come about and what is the history of these batteries?
The first person to have come up with the concept of these Lithium ion batteries was M.S. Whittingham from the Binghamton University, Exxon. He used a titanium sulfide and lithium to power a battery he devised in the 1970s. The use of metallic lithium worked fine for the batteries as far as power was concerned but they posed certain safety issues and concerns and could not be made commercially unless some safer solution was found.
Lithium Drills
This is why when some experimentation was done with the help of the intercalation technique using lithium's electrochemical properties and graphite in 1980 by Rachid Yazami who worked with the French National Center for Scientific Research and Grenoble Institute of Technology and published a work in a year or two which indicated that lithium intercalation in graphite was indeed a reversible reaction and could be used in the making of rechargeable lithium batteries. In addition to this the use of lithium metal was also restricted and some other form of lithium containing lithium ions was used.
This went on until the Sony brand released the first lithium ion battery on a commercial scale. People took to these batteries instantly and many electronic devices were powered now with the help of these rechargeable batteries. These cells worked on the principle of layered oxide chemistry and used lithium cobalt oxide as a substitute of previously used lithium metal. Many more researches were done by many people in the need to develop more cost effective and safe alternatives to the lithium cobalt oxide and among the many materials developed were the lithium iron phosphate and many other phosphor-olivines were developed in 1996 by the scientists Akshaya Padhi and John Goodenough who worked with their teams to develop better ways to advance the lithium battery technology.
Stability, safety, cost and performance are the few major aspects of developing this battery further. Lithium ion batteries so far have become quite popular for their safety mechanisms and long lasting durability and reliability in terms of performance. Portable devices like power tools and laptops are being fitted with these batteries for a reliable upkeep. Even electric automobiles and many other serious industries are employing these rechargeable lithium batteries as their power source because it is a stable and effective method that they can rely on. More improvement was made in 2004 when the MIT researcher Yet-Ming Chiang utilized iron phosphate in the lithium battery which has very small particles of 100nm diameter. This way the performance of the battery was improved even further and it had more capacity as well.
Special Price!!! DEWALT DCD970KL 18-Volt XRP Lithium-Ion 1/2-Inch Hammerdrill/Drill/Driver Kit
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DEWALT DCD970KL 18-Volt XRP Lithium-Ion 1/2-Inch Hammerdrill/Drill/Driver Kit Feature
- DEWALT 18-volt XRP track saw Batteries offer long battery life; durability: 2,000 recharges
- Patented 3-speed all-metal transmission matches the tool to task for fastest application speed and improved run time
- Heavy-duty 1/2-inch self-tightening chuck tightens throughout operation providing superior bit gripping strength
- LED worklight provides increased visibility in confined spaces
- High power, high efficiency motor delivers 450 unit watts out of max power for superior performance in all drilling and fastening applications
DEWALT DCD970KL 18-Volt XRP Lithium-Ion 1/2-Inch Hammerdrill/Drill/Driver Kit Overview
Dewalt built high power, high efficiency motor delivers 425 unit watts out of max power for superior performance. 18V high performance battery pack provides longer run-time and battery life than 18V systems. Patented 3-speed all-metal transmission matches the speed to the application for optimal performance. Heavy-duty 1/2" self-tightening chuck. Enhanced durability and reliability to withstand the job-site environment and the most demanding applications. Anti-slip comfort grip.DEWALT DCD970KL 18-Volt XRP Lithium-Ion 1/2-Inch Hammerdrill/Drill/Driver Kit Specifications
Handle everything from wood and steel to masonry and concrete with the DEWALT DCD970KL 18-Volt 1/2-Inch XRP Lithium-Ion Hammerdrill/Drill/Driver Kit. Built around a versatile tool and highly efficiency motor, this DEWALT drill makes quick work of drilling and fastening tasks at hand. Enjoy the patented, three-speed, all-metal transmission and comfortable grip for job-specific performance and less user fatigue. This kit includes a convenient one-hour lithium-ion charger, two 18-volt XRP lithium-ion batteries, a 360-degree side handle, and a sturdy kit box.
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 A 360-degree side handle offers hand-position options for comfort and reduced fatigue. View larger. |
 The comfortable mid-hand grip and balanced body make this portable tool easy to control. View larger. |
The DEWALT 18-Volt 1/2-Inch XRP Lithium-Ion Hammerdrill/Drill/Driver's high-power, high-efficiency motor is capable of delivering a maximum of 450 unit watts out, which translates to performance in a broad range of applications. Its patented, three-speed, all-metal transmission matches the tool's performance to the task at hand, resulting in the fastest application speed and improved run time.
This hammerdrill/drill/driver features three speed settings--0 to 500, 0 to 1,250, and 0 to 2,000 rpm in drilling, as well as 0 to 8,500, 0 to 21,250, and 0 to 34,000 bpm in hammerdrill mode--that make precise hole placement and material-specific performance easier to achieve.
Comfortable Handling and Convenient LED
The DCD970KL is built with an ergonomic grip for comfortable handling that goes a long way toward ensuring accurate results. Its balanced, mid-tool handle placement makes control easy, while a 360-degree side handle offers hand-position options for comfort and reduced fatigue when tackling extended applications.
Stay on point with the DCD970KL's heavy-duty, 1/2-inch, self-tightening chuck that tightens as you use the drill to provide superior bit-gripping strength.
It weighs an easy-to-manage 5-1/4 pounds and features a convenient LED for visibility.
Trademarked XRP Extended-Life Battery System
A tool's only useful if it runs long enough to get the job done and the The DEWALT XRP extended run time lithium-ion batteries keep the DCD970KL running at full tilt. They provide up to 40 percent more run time than standard Ni-Cad batteries, and any XRP battery can be used with any 18-volt DEWALT tool, which allows you to expand your system by adding other DEWALT cordless tools (sold separately) as the demands of your job grow. In addition, the one-hour yellow lithium-ion charger helps to reduce downtime, so you can recharge and be back to work quickly.
This 18-volt 1/2-inch XRP Lithium-Ion Hammerdrill/Drill/Driver comes with a DEWALT warranty package that includes a three-year limited warranty, a one-year free service contract, and a 90-day money-back guarantee.
What's in the Box
DCD970KL 18-Volt 1/2-Inch XRP Lithium-Ion Hammerdrill/Drill/Driver, one-hour yellow lithium-ion charger, two 18-volt XRP lithium-ion batteries, 360-degree side handle, and kit box.
 Drill through masonry, power through metal, and fasten material with this versatile tool. |
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