Lithium hydroxide is mainly consumed in the production of lithium greases. MWNTs are used in lithium ion batteries cathodes. The 15 kWh lithium ion battery pack weighs . Reduction by lithium aluminum hydride yields cycloheptatriene. Until the development of batteries with nickel-cadmium and lithium, most batteries contained manganese. PCl is a precursor for lithium hexafluorophosphate, LiPF, an electrolyte in lithium ion batteries. There is considerable interest in as a possible cathode for lithium ion batteries. The Nintendo 3DS comes with a lithium ion battery. In combination with lithium tri-"tert"-butoxyaluminum hydride it cleaves ethers. Metallic sodium is generally less reactive than potassium and more reactive than lithium. Prismatic cells were made available in both alkaline and lithium designs. Rhodium chloride in the presence of lithium iodide is employed as catalysts. Glasses derived from lithium carbonate are useful in ovenware. Glazes containing lithium oxides are used for ovenware. It is less effective in preventing relapse than lithium or valproate.