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Yes—a battery can be made flexible in a laboratory, but the “bendy battery” reported in 2011 was a research prototype, not evidence of a consumer product now available to buy. The work used graphene paper in a lithium rechargeable battery and reported qualitative performance gains over a conventional, non-flexible electrode design.
What did the researchers build?
In “Flexible energy storage devices based on graphene paper,” Hyeokjo Gwon and co-authors described a free-standing graphene-paper electrode for a lithium rechargeable battery. Graphene paper served as both the conducting agent and the current collector. The Royal Society of Chemistry lists the paper as first published on 25 February 2011.
Contemporaneous coverage described the prototype’s cathode as vanadium pentoxide (V₂O₅) grown on graphene paper using pulsed laser deposition, and its anode as graphene paper coated with lithium. The report said the resulting battery could be twisted or rolled.
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1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesWhat performance did the paper report?
The authors said the graphene-based flexible electrode improved energy density, power density, and life-cycle performance compared with a conventional non-flexible electrode architecture. The reviewed abstract gives no numerical values or test conditions, so it does not support a percentage improvement or a direct product-level comparison.
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In the 2011 coverage, corresponding author Kisuk Kang characterized the results as promising and said the team hoped to improve performance and long-term stability, potentially using a solid-state or polymer electrolyte. Those were statements about work in progress at the time, not an update on the design’s status today.
Does this mean flexible batteries are available now?
No conclusion about current availability follows from these sources. They document a specific research-stage design and its reported findings in 2011; they do not establish that this battery was commercialized or describe its subsequent development. A bendable laboratory prototype also should not be taken as proof that a battery is suitable for everyday devices: the available abstract does not provide quantified results or product specifications for such a comparison.
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Sources
- Royal Society of Chemistry: “Flexible energy storage devices based on graphene paper” — paper metadata and abstract.
- Chemistry World: “Bendy batteries a step closer” — Rebecca Brodie’s contemporaneous report, published 25 February 2011.
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