Does the communication lithium battery rack need grounding wire?

This kind of battery rack needs grounding wire.

According to building materials network, China, the use of grounding wire in the battery rack of communication lithium battery can prevent short circuit of lithium battery, thus avoiding the safety accident of lithium battery explosion.

In the design, construction and installation of UPS, the battery rack or battery cabinet frame is usually connected with the ground wire to ensure electrical safety and improve the reliability and safety of the power supply system. But the negative electrode of lithium battery can't be grounded, and grounding has no effect. Only alternating current has a ground wire. The function of grounding wire is to lead the electricity on the metal shell that may be charged to the earth to avoid electric shock accidents.