SECONDARY BATTERY, METHOD FOR PRODUCING SECONDARY BATTERY, SECONDARY BATTERY POSITIVE ELECTRODE, METHOD FOR PRODUCING SECONDARY BATTERY POSITIVE ELECTRODE, BATTERY PACK, BATTERY DEVICE, ELECTRIC VEHICLE, POWER SYSTEM, AND POWER SOURCE FOR POWER STORA

摘要

A secondary battery is provided with a positive electrode equipped with a conductive substrate, a plurality of carbon nanotubes positioned in an upright manner on the conductive substrate, and sulfur at least held in at least some of the spaces between the carbon nanotubes. A negative electrode contains a material for storing and discharging lithium ions, and the electrolyte used is a nonaqueous electrolyte containing lithium ions.