GMG graphene cells complete 1,000 six-minute charge cycles with no degradation
By Eve
Graphene Manufacturing Group reported on 7 October 2026 that its graphene aluminium-ion G CELLS completed 1,000 six-minute charge and discharge cycles with no performance reduction, according to test data from Indiana's Battery Innovation Center. The lithium-free cells, developed under a joint agreement with Rio Tinto, achieved 58 Wh/kg specific energy at a six-minute charge rate and 94% energy efficiency, outperforming a lithium titanate oxide cell that degraded to 80% capacity within 82 cycles under the same conditions.
Why it matters
Fast-charging battery technology without lithium could reshape procurement strategies for charging infrastructure if energy density improves, as the 1,000-cycle durability and 94% efficiency address two key barriers to ultra-rapid charging deployment. CPOs evaluating future hardware may need to monitor graphene cell development as an alternative chemistry for high-throughput sites.
Source
- Source
- https://chargedevs.com/newswire/gmg-reports-1000-six-minute-charge-cycles-for-its-graphene-g-cells/
- Original title
- “GMG reports 1,000 six-minute charge cycles for its graphene G CELLS”
- Published
- 16 October 2026
- Updated
- 17 October 2026
In this story
- Topic
- EV Charging
- Place
- Global
- Tag
- GMG
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