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Lithium vs. Lithium Ion Batteries
Feb 25,2021, 948
Lithium and lithium ion batteries, or cells, provide portable electricity. They both work by storing electric charges chemically; when you connect their electrodes with a wire, the charges flow from the battery's cathode to its anode, producing an electrical current. Each type has benefits and drawbacks.

Cell Type
The main difference between lithium and lithium ion batteries is that lithium batteries are a primary cell and lithium ion batteries are secondary cells. The term "primary cell" refers to cells that are not rechargeable. By contrast, secondary cell batteries are rechargeable.

Comparing Lithium and Lithium-Ion
Lithium batteries are not easily and safely rechargeable; this problem led to the invention of lithium ion batteries. They can be charged several times before becoming ineffective. Lithium batteries however are not rechargeable, but do offer more in the way of capacity than lithium ion batteries. They have a higher energy density than lithium ion batteries. Lithium batteries use lithium metal as their anode unlike lithium ion batteries that use a number of other materials to form their anode. Lithium ion batteries are disadvantaged in that their shelf life is about three years, after that, they are worthless.

How They Work
In both types, electrical currents occur because of a chemical reaction that takes place inside the battery. The anode in a cell moves electrons to the cathode which is located at the opposite end of the cell. The electrolyte that separates the cathode from the anode both stores electrical energy and serves as an electrical conductor, allowing electricity to flow through the battery and power a circuit or appliance.

History of Lithium-Based Batteries
Chemists worked on the idea for the lithium battery in 1912, though it wasn't until the 1970s that the the first examples became available to consumers, and these batteries were not rechargeable. The chemical instability of lithium metal made rechargeable lithium batteries too difficult to develop. In 1991, scientists used more stable lithium compounds to create a battery. This lithium ion battery was rechargeable and lighter in weight than other rechargeable battery technologies available at the time.

Lithium and Lithium-Ion Battery Uses
Both types of batteries offer a lot of power for their size. They can be used in any number of devices from flashlights to compact disc players. Lithium ion batteries can be formed into many shapes which makes them ideal for items such as laptop computers, iPods and cell phones. Their rechargeability makes them ideal power sources in consumer electronics. Lithium batteries are the battery of choice when it comes to powering artificial pacemakers because of their long life and the amount of energy they offer. Lithium batteries work well as long-term power sources in devices that are out of reach, such as smoke detectors and computer motherboards.
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