In recent years batteries have emerged in the marketplace that take advantage of the unique properties of lithium. Lithium metal is an attractive choice to serve as a battery anode because it is easily oxidized and it produces an exceptionally high amount of electrical charge per unit-weight. The electrolytes used in lithium batteries contain lithium salts dissolved in polar organic solvents. A variety of substances can serve as the battery cathode. They include inorganic solids, liquids, and dissolved gas. The cell potentials of lithium-metal batteries can be calculated from thermodynamic principles. These open-circuit voltages can be compared to the operating voltages of batteries delivering a current. Some lithium batteries employ intercalation compounds as their cathodes. These solids have layered or tunneled crystal structures into which lithium ions insert during the reduction process. When an intercalation cathode is paired with a lithiated-graphite anode, the resulting battery has the advantage of being rechargeable. It is known as a lithium-ion battery because no lithium metal is present.
The "Chemistry Teacher Connection" (CTC) is especially for high school chemistry teachers. For only $40/year, it offers an online-only subscription to CLIC along with membership in the Division of Chemical Education, normally $65/year. CTC subscribers receive access to all articles and supplements from 1996 through the current issue.
Through special arrangement with the ACS, JCE High School CLIC is now able to provide subscribers with online access to Chemical & Engineering News articles that have been selected specifically for secondary science instructors and their students.
Occasionally, collections of JCE back issues become available for donation to individual teachers, schools, or libraries. JCE matches collections with interested recipients. Recipients pay shipping costs or pick up the collection.