CHEM10004 Lecture Notes - Lecture 29: Ion, Valence Electron, Electrolyte
4 Oct 2018
School
Department
Course
Professor
Document Summary
Chemistry 2 - lecture 29 - week 10. Aluminium oxide: al(oh)3, yalo(oh), a-alo(oh) and fe/ti/si oxides. 2400 c: other complicating factors: al2o3 volatile, lots of heat = expensive = resource intensive = environmental impact, use of electrolysis. Lithium / batteries: produced by electrolysis, li is the most electro positive element and light and non toxic. Wednesday, 3 october 2018: has a low environmental impact, produces high electrode voltage, crucial for development of portable devices, anode: lithiated graphite (c6l > c6 + li+ + e, cathode: lithium cobalt oxide (coo2 + li+ + e. : aqueous electrolytes used for batteries with e cell > 1. 23 (slow rate of reaction) Wednesday, 3 october 2018: for li cell e(cell) > 3v: fast electrolysis of h2o, use non aqueous electrolytes (harder to undergo redox, solid state ion conduction membranes also used. Lithium triangle: borders of chile, bolivia and argentina meet, 70% of world"s li found here.
