Hi Greg,
Maybe you know already, this one is for you:
… The Sixth Element Materials will be providing the graphene product, out of the Company's current 260 tons/year capacity. However, as Huawei graphene requirements is estimated to take up almost all of TSEM's available capacity, TSEM is working on increasing its capacity to 1000 tons/year, and intends to be on stream around the beginning 2020 (but the dates are not yet finalized).
https://www.graphene-info.com/graphene-products-huawei-mate-20-x-be-supplied-sixth-element-materials-large-quantities
Well, Huawei will Need hundreds of tons for a... Smartphone? Huh, they will build those big heavy outdoor chumps? 
No, you and flexegraph will find an answer in the next link, make sure you will watch the Video..
https://www.graphene-info.com/huawei-introduces-new-high-temperature-li-ion-batteries-use-graphene-reduce-operation-temperature
BTW, the Sixth Element Materials and Bernhard Münzing:
https://www.azonano.com/article.aspx?ArticleID=5045
Have a nice day,
L
