I don’t know who #EGO buys their batteries from, but my EGO 21”mower is still running on its ORIGINAL battery, now nine years old.

Every time I think it’s getting near replacement time, it powers through my overgrown lawn on a single charge like a boss.

#Batteries #ElectricMower #LithiumIon #Environment #GasFree

I don’t know who #EGO buys their batteries from, but my EGO 21” mower is still running on its ORIGINAL battery, now nine years old.

Every time I think it’s getting near replacement time, it powers through my overgrown lawn on a single charge like a boss.

#Batteries #ElectricMower #LithiumIon #Environment #GasFree

#SodiumBatteries offer an alternative to tricky #lithium

Lithium is relatively scarce and mostly refined in China. Sodium is neither

Oct 26th 2023

Excerpt: "Fortunately, lithium is not the only game in town. As we report this week, a clutch of firms are making batteries based on sodium, lithium’s elemental cousin. Since sodium’s chemical properties are very similar to those of lithium, it too makes for good batteries. And sodium, which is found in the salt in seawater, is thousands of times more abundant on Earth than lithium and cheaper to get at. Most of the companies using sodium to make batteries today are also Chinese. But pursuing the technology in the West might be a surer route to energy security than relying heavily on lithium.

"Besides its abundance, sodium has other advantages. The best lithium batteries use #cobalt and 3nickel in their electrodes. Nickel, like lithium, is in short supply. #Mining it on land is #environmentally destructive. Proposals to grab it from the #seabed instead have caused rows. A good deal of the world’s cobalt, meanwhile, is extracted from small mines in the Democratic Republic of #Congo, where child labour is common and working conditions are dire. Sodium batteries, by contrast, can use electrodes built from iron and manganese, which are plentiful and uncontroversial. Since the chemical components are cheap, a scaled-up industry should be able to produce batteries that cost less than their lithium counterparts.

"Sodium is not a perfect replacement for lithium. It is heavier, meaning sodium batteries will weigh more than lithium ones of an equivalent capacity. That is likely to rule them out in some cases where lightness is paramount. But for other applications, such as grid storage or home batteries, weight is irrelevant. Several Chinese carmakers are even beginning to put sodium batteries in electric vehicles.

"Perhaps the biggest disadvantage of sodium batteries is their late start. #LithiumIon batteries were first commercialised in the 1990s and have benefited from decades of investment. But the rest of the world is behind China on both fronts anyway. America and the European Union have announced enormous programmes of green industrial subsidies. If they are determined to bankroll batteries, some of the pot should go to sodium."

Read more:
https://www.economist.com/leaders/2023/10/26/sodium-batteries-offer-an-alternative-to-tricky-lithium

Archived version:
https://archive.ph/7x6JX#

#SolarPunkSunday #DeepSeaMining #NoLithiumMining #LeaveItInTheOcean #LeaveItInTheOcean #LithiumAlternatives #SodiumBatteries #RenewablesNow

World’s first #sustainable #battery lasts 6,000 cycles, could offer 30-year life

The batteries transport electrons using three physical processes, thanks to an ultraporous carbon layer inside the cell.

by Georgina Jedikovska, Updated: Apr 11, 2025 11:02 AM EST

"#Ukrainian startup #SorbiForce has made a major breakthrough by transforming agricultural waste into a metal-free organic battery prototype in an attempt to combat the environmental impact of conventional batteries.

"Apart from #AgriculturalWaste, the Arizona-based energy storage company claims they used nothing but carbon, water, and salt to develop what they say is the world’s first truly sustainable battery.

"The team, led by material scientist Serhii Kaminskyi, SorbiForce’s CEO and co-founder, came up with the idea after realizing agriculture generates up to 2.1 billion tons of waste each year.

[...]

"However, what’s perhaps most striking is that at the end of a cell’s life, as much as 95 percent of the battery can be broken down into organic materials, while the rest of the components can later be reused.

"Additionally, Drolet remarks that, unlike #LithiumIon (Li-ion) batteries, which often become #toxic plastic waste or pose safety hazards when recycled, SorbiForce cells pose no risk of explosion, thermal runaway or toxic leaks thanks to their metal-free chemistry and #ClosedLoop design, even if cut in half."

Read more:
https://interestingengineering.com/energy/world-first-metal-free-battery-6000-cycles

#SolarPunkSunday #RenewblesNow #NoLithiumMining