25600
In addition , X - ray photoelectron spectroscopy and electrochemical impedance spectroscopy demonstrated the reversibility of the Li / Se system in ether - based electrolyte and the presence of side products in the carbonate - based electrolytes .
 Chemical: Li; Chemical: Se; Chemical: ether; Chemical: carbonate
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Li; Chemical: Se; Chemical: ether; Chemical: carbonate