Secondary cell, method for manufacturing secondary cell, positive electrode for secondary cells, method for manufacturing positive electrode for secondary cells, battery pack, electronic device, and electric vehicle

Abstract

A secondary cell with a positive electrode, a negative electrode, and an electrolyte, the positive electrode containing insoluble sulfur.

What is claimed is: 
     
         1 . A battery comprising:
 a positive electrode including insoluble sulfur, a conductive agent and a binder;   a negative electrode; and   an electrolyte including at least one of hexafluoropropylene (HFP), polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP), polyaniline (PAN), polyethylene oxide (PEO), or a copolymer of any of them.   
     
     
         2 . The battery according to  claim 1 , wherein the conductive agent including carbon material. 
     
     
         3 . The battery according to  claim 2 , wherein the carbon material is at least one of carbon black, activated carbon, carbon fiber, a carbon nanotube, or graphite. 
     
     
         4 . The battery according to  claim 1 , wherein the negative electrode includes at least one of lithium, sodium, silicon, aluminum, magnesium, a magnesium salt, a lithium-containing alloy, a carbon material, tin oxide, or titanium oxide. 
     
     
         5 . The battery according to  claim 1 , wherein the electrolyte includes at least one of a lithium ion, a sodium ion, a magnesium ion, an aluminum ion, or a tetraalkylammonium ion. 
     
     
         6 . A battery pack comprising:
 a battery according to  claim 1 ;   a control unit for the battery; and   a package containing the battery.   
     
     
         7 . An electronic device powered by a battery according to  claim 6 . 
     
     
         8 . A electric vehicle comprising:
 a battery according to  claim 1 ,   a transducer configured to receive electrical power from the battery and convert the received electrical power into a force that drives the electric vehicle.