| abstract |
The invention provides a sagger, which comprises a substrate, an intermediate layer and a working layer stacked in sequence; the substrate includes mullite and cordierite, the intermediate layer includes alumina, and the working layer includes aluminum titanate. The present application also provides a preparation method of the sagger. The sagger provided by the application has the advantages of simple process, low cost, energy saving and environmental protection, good thermal shock stability, strong corrosion resistance, long life, etc., and has a good market application prospect in the field of sagger for roasting lithium battery cathode materials . |