Ilaria Rosella Pagliaro Elecom presents the first sodium-ion powerbank, an ecological and safe alternative to lithium batteries, with greater duration and resistance to extreme temperatures
©Elecom
The battery industry is undergoing a process of ongoing evolution, seeking safer, more resilient, and environmentally friendly solutions. The Japanese firm Elecom has developed the first sodium-ion-based powerbank, a true innovation in portable battery technology. The new device stands out for having a lower environmental impact, higher security, and much longer life expectancy compared to conventional lithium-ion batteries.
Lithium-ion batteries are currently dominating the market, powering smartphones, tablets, and laptops. According to Global Market Insights, the market for these batteries is predicted to rise by a compound annual growth rate (CAGR) of 15.8% between the periods 2025 to 2034. There are some drawbacks, however, to the batteries: they are heat-sensitive and prone to overheat extremely and, when manufactured, produce a high level of environmental degradation. The extraction of elements like lithium and cobalt results in significant levels of CO₂ emissions and depletion of natural resources.
To address such issues, Elecom developed the DE-C55L-9000 powerbank that is sodium-ion technology-driven. Unlike the more common lithium-ion batteries, the device uses sodium as cathode and sodium salts as the electrolyte—chemicals more commonly found, less hard to find, and less environmentally polluting. Production methods also cut back on causing environmental harm, more promoting sustainability on the portable battery market.
A powerbank withstanding very hot or cold temperatures
In addition to being more environmentally friendly, the DE-C55L-9000 also possesses excellent resistance against extreme weather conditions. It can operate from -31°F to 122°F, making it ideal for individuals who live in extreme environments such as deserts, mountains, or regions with extreme temperature fluctuations.
Safety-wise, Elecom has fitted an upgraded thermal protection system that is able to monitor the temperature at all times to prevent overheating and thermal instability. The powerbank is 9,000 mAh, and it is able to charge a 1,800 mAh phone battery 2.9 times and a 3,000 mAh model 1.7 times.
One of the primary benefits of this powerbank is its remarkable lifespan. Whereas a typical lithium-ion battery guarantees anywhere from 500 to 1,000 charge cycles, the DE-C55L-9000 will extend up to 5,000 cycles before it significantly diminishes in performance.
The only downside is it’s slightly heavier than lithium models: it’s 0.77 lbs, which is heavier due to sodium-ion technology having lower energy density. But it still only costs 9,980 yen ($67) so it’s still a great buy for anyone who wants something more environmentally friendly and safer.
Source: Elecom.co.jp
