3ME Technology conducts ArcFlash testing with Rio & collaborates with Toshiba on LTO batteries
3ME Technology has made announcements on two battery systems developments in its involved in that have relevance to mining. First, in partnership with Rio Tinto, it has completed a world‑first DC ArcFlash testing program on high‑voltage battery systems as part of a multi‑year safety initiative. 3ME says the joint arc flash testing project is part of a broader battery testing program spanning several years. In this work, it says it pushed the limits of large‑format lithium‑ion battery packs under worst‑case fault conditions.
Why does this matter? 3ME: “Our testing highlighted critical risks: under specific circumstances, DC arc faults can generate extreme levels of energy and heat – in some cases exceeding the protective capability of standard PPE.” Cited key safety takeaways were that proper isolation is essential; PPE must be correctly rated; and that working safety devices such as fuses are essential. For testing purposes, all safety devices were intentionally disabled or removed to ensure an arc flash would occur.
The company adds: “Armed with this first‑of‑its‑kind data, 3ME Tech and Rio Tinto are setting new benchmarks for battery safety – informing faster‑acting protection devices, improved DC arc‑flash calculations, enhanced electrical design standards, and stronger PPE protocols. These insights will directly shape safer designs and standards for the next generation of battery‑powered equipment.”
Second, 3ME Tech and Toshiba International Corporation – Oceania have come together in a strategic collaboration to co-develop a ≤1,000 VDC liquid-cooled Lithium Titanium Oxide (LTO) SCiB traction battery. This solution is being developed specifically for high-power, heavy-duty mobile applications operating in demanding environments.
The collaboration is focused on sectors such as mining, where safety, reliability, and long service life are critical requirements rather than optional features. These sectors demand energy storage solutions that can withstand harsh operating conditions while delivering consistent and dependable performance.
Toshiba is one of the world’s leading developers of Lithium Titanium Oxide (LTO) battery technology. LTO batteries are well known for their ultra-long cycle life, extremely fast charging capability, and outstanding safety characteristics, including a very low risk of thermal runaway. They also perform reliably across a wide range of operating temperatures, making them particularly suitable for heavy-duty and mission-critical applications.
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