| abstract |
Disclosure one is used for producing the solid solution synthetic method of iron content active material (74), wherein, ferrum is made to mix with supporting oxide by following steps: iron content class material (α) (60) to be mixed (64) with support class material (β) (62) containing X element, to form mixture (66)；Carry out high-temperature process (68), to form ferrum-X-oxygen solid solution (70)；And, this solid solution is reduced (72), mix iron content active material with what form ferrum and X oxide (74). |