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1.What is the difference between a lithium-ion battery and a regular battery? Lithium batteries feature primary cell construction. This means that they are single-use—or non-rechargeable. Ion batteries, on the other hand, feature secondary cell construction. This means that they can be recharged and used over and over again. 2. What is lithium-ion battery and how does it work? The anode and cathode store the lithium. The electrolyte carries positively charged lithium ions from the anode to the cathode and vice versa through the separator. The movement of the lithium ions creates free electrons in the anode which creates a charge at the positive current collector. 3. What are lithium-ion batteries used for? Lithium-ion batteries are currently used in most portable consumer electronics such as cell phones and laptops because of their high energy per unit mass relative to other electrical energy storage systems. 4. What is a disadvantage of lithium batteries? Despite its overall advantages, lithium-ion has its drawbacks. It is fragile and requires a protection circuit to maintain safe operation. Built into each pack, the protection circuit limits the peak voltage of each cell during charge and prevents the cell voltage from dropping too low on discharge. 5. What are 3 important uses of lithium? The most important use of lithium is in rechargeable batteries for mobile phones, laptops, digital cameras and electric vehicles. Lithium is also used in some non-rechargeable batteries for things like heart pacemakers, toys and clocks. 6. Can lithium-ion batteries be recharged? Lithium-ion batteries, on the other hand, are rechargeable. We call this type of cell a secondary cell. This means that the lithium ions can move in two directions: from the anode to the cathode while discharging and from the cathode to the anode when recharging.