The high-voltage system is part of the lithium-ion battery management system; this dataset includes primary raw materials, auxiliaries, and energy used in the production process, as well as infrastructure such as plant construction. However, the manufacturing of production equipment is not included within the boundaries of this dataset; the data inventory is taken from literature; the high-voltage system includes cables, nylon clips, fuses between module, chloroprene rubber washers, plastic and aluminum connectors, and aluminum covers.