Volt Carbon Technologies Announces the Development of a Low Temperature Li-metal Battery Functional to -80 Degrees C

In This Article:

Volt Carbon Releases Battery Test Results

Calgary, Alberta--(Newsfile Corp. - September 16, 2024) - Volt Carbon Technologies Inc. (TSXV: VCT) (OTCQB: TORVF) ("Volt Carbon" or the "Company") is pleased to announce that the Company has achieved what it believes to be a breakthrough in lithium-ion battery performance, with successful testing showing functionality at temperatures as low as -80°C.

Highlights
The team at Solid UltraBattery, in collaboration with Volt Board Member, Dr. Aiping Yu, Professor and Director of the Carbon Nanomaterials Laboratory for Renewable Energy and Multi-functional Composites at the University of Waterloo (U of W), has successfully produced a proof of concept for a proprietary high-entropy electrolyte. This electrolyte has been designed to improve low-temperature battery performance.

In tests conducted using Li-metal coin cells, the new electrolyte demonstrated superior performance compared to conventional electrolytes (see Figure 1). The results showed that, at -40°C, the proprietary electrolyte retained 62.5% of its capacity, compared to just 16.8% for the standard electrolyte. At -60°C, the proprietary electrolyte maintained 49.7% capacity, while the standard electrolyte showed no capacity retention.

Most notably, at an extreme temperature of -80°C, the proprietary electrolyte retained 30.3% capacity, a result that management considers to be a significant advancement in battery technology for cold environments.

Fig. 1: Capacity Retention of Conventional Electrolyte vs Volt's High Entropy Electrolyte

To view an enhanced version of this graphic, please visit:
https:/https://finance.yahoo.com/images.newsfilecorp.com/files/9904/223483_9ab5b8c4f4741a3b_001full.jpg

Dr. Hey Woong Park, Head of Battery Development at Solid UltraBattery, who brings over 20 years of experience in automotive battery OEMs, commented; "The ability of our proprietary electrolyte to perform at temperatures as low as -80°C highlights its potential for industries demanding reliable energy storage in extreme conditions, such as automotive, aerospace and defense. This innovation is particularly critical for regions like Canada, where winter temperatures can severely affect battery performance. Last winter's extreme freeze, which left many electric vehicles stranded due to charging inefficiencies, illustrates the urgent need for advancements like ours. With this technology, we aim to overcome the challenges of cold-weather battery performance, ensuring reliable operation even in the most demanding climates."