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A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life.
LiFe II PO 4 ⇌ Fe III PO 4 + Li + + e −. Extraction of lithium from LiFePO 4 produces FePO 4 with a similar structure. FePO 4 adopts a P mnb space group with a unit cell volume of 272.4 Å 3, only slightly smaller than that of its lithiated precursor. Extraction of lithium ions reduces the lattice volume, as is the case with lithium oxides ...
Arumugam Manthiram and John B. Goodenough first identified the polyanion class of cathode materials for lithium ion batteries. [14] [15] [16] LiFePO 4 was then identified as a cathode material belonging to the polyanion class for use in batteries in 1996 by Padhi et al. [17] [18] Reversible extraction of lithium from LiFePO 4 and insertion of ...
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An 18650 battery [1] or 1865 cell [2] is a cylindrical lithium-ion battery common in electronic devices. The batteries measure 18 mm (0.71 in) in diameter by 65 mm (2.56 in) in length, giving them the name 18650. [3] The battery comes in many nominal voltages depending on the specific chemistry used.
A typical lithium-ion battery can generate approximately 3 volts per cell, compared with 2.1 volts for lead-acid and 1.5 volts for zinc-carbon. Lithium-ion batteries, which are rechargeable and have a high energy density, differ from lithium metal batteries, which are disposable batteries with lithium or its compounds as the anode.