10.1016/j.elecom.2003.08.018
Anthracene based organodisulfide positive active materials for lithium secondary battery
 The ABTH was prepared following the methods in the literature [10] either from 1,4,5,8-tetrachloroanthracene (route 1 in Scheme 1) or from anthracene (route 2 in Scheme 1), the products were extracted with CS2 in Soxhlet's extractor for 24 h to remove free sulfur then with water-alcohol to remove soluble impurities. PABTH was polymerized simply by oxidative coupling reaction of ABTH in the presence of FeCl3 in chloroform at room temperature for 48 h. The polymer was dried at 60 degC in oven to constant weight.
products
extracted
24 h
h
PABTH
polymerized
48 h
h
polymer
dried
60 degC
degC