Essay The Components Of The Lithium Ion Batteries

1327 Words Dec 19th, 2015 null Page
The components of the lithium ion batteries include a positive electrode made of metal oxide, negative electrode made of carbon (graphite), a separator made of a micro-porous polymer, and an organic electrolyte (ether) that is made up of dissolved ions of lithium. During recharge, the lithium ions travel from the positive metal oxide to the negatively charged graphite electrode. The reverse flow occurs during discharge (when the battery is in use) (Carnegie, 40; Divya and Østergaard, 513). Figure 3: Function and Components of the Lithium Ion Battery The Li-Ion batteries are a lesser developed technology as compared to the lead acid batteries. They are mostly utilized in consumer electronics because they have a higher energy density (reduced weight), reduced standby losses, and cycling tolerance (Eichinger and Besenhard, 1). The overall technical properties of the Li-Ion batteries are reliant on the electrolyte and electrode materials; however, a few general properties can be distinguished. Due to their increased energy density, the cells are characterized by a nominal voltage of about 3.7V. The voltage is relatively higher compared to the other chemistries, which implies that a reduced number of Li-Ion cells will be needed to generate a similar power output. Additionally, there response time is almost similar to that of many other cells at approximately 20 milliseconds. Moreover, they have relatively higher round trip efficiencies of about 85%-95%. There operational life…

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