Compared to lithium, sodium batteries are cheaper to produce, safer to use, and operate better in extreme temperatures, but sodium batteries of equal capacity are heavier and larger than their lithium equivalents. However, sodium ion batteries are a promising technology, because they will be. This guide, backed by the engineering expertise of HCC (Shenzhen Topway), will help you navigate the selection and integration process to build a resilient, efficient, and cost-effective energy storage battery system. Before looking at specific storage battery models, define your objectives. Are. A cheaper, safer, and more abundant alternative to lithium is finally making its way into cars—and the grid. Two main battery technologies—Lithium-Ion (Li-ion) and Sodium-Ion (Na-ion) – (Sodium-Ion vs.