There might be not enough lithium for every application so why not make cheaper sodium batteries.
Detailed methods are given to make a sodium ion battery and working principle explained.

Making spherical carbon particles from sugar:
http://jes.ecsdl.org/content/164/9/A1...

Making Na-air full cells:
https://www.mdpi.com/2313-0105/5/3/56...

Li-ion battery behaviour at different temperatures:
https://www.sciencedirect.com/science...

A safe battery idea:
https://www.sciencedirect.com/science...

Na-ion vs Li-ion aku - kas naatriumpatareid on paremad ja kuidas on sellega seotud suhkur ?
Na-Ionen vs Li-Ionen-Batterie - sind Natriumbatterien besser und wie ist Zucker daran beteiligt?

Na-ion vs Li-ion Battery - ¿Son mejores las baterías de sodio y cómo participa el azúcar en esto?
Na-ion vs Li-ion Battery - as baterias de sódio são melhores e como o açúcar está envolvido nisso?

Na-Ion против Li-Ion батареи - лучше ли натриевые батареи и как в этом участвует сахар?

Na- 이온 대 리튬-이온 배터리-나트륨 배터리가 더 좋고 설탕이 어떻게 관련되어 있습니까?