Patent ID: 8563677

Claim:
A solution comprising: (i) lithium, (ii) aluminum isopropoxide, and (iii) a polyhydroxyl solvent having at least 3 carbon atoms and at least two primary hydroxyl groups, the longest carbon chain being a hydrocarbon, selected from the group consisting of 1,3-propane diol, 1,4-butane diol, 1,5-pentane diol, and combinations thereof; wherein the aluminum isopropoxide is present in an amount of from 2.2 to 8.4 wt % based on the total weight of the solution; wherein the molar ratio of Li:Al ranges from 0.75:1 to less than 1.5:1, and wherein no precipitation is visible to the naked eye when the solution is allowed to stand still over a period of at least one week at 25° C.