
Hard carbons are extensively studied for application as anode materials in sodium-ion batteries, but only recently a great interest has been focused toward the understanding of the sodium storage mechanism a. . Rechargeable alkali metal-ion batteries, such as lithium-ion batteries (LIBs) [1], sodium-ion. . Definition and terminology related to hard carbonsHard carbons received their popular name due to their mechanical hardness compared with s. . The structural and morphological features of carbon-based materials for application in electrochemical energy storage systems have been investigated using several analytical techniq. . Several promising hard carbon materials have been proposed for application as anode in SIBs. Despite new material development represents a crucial research field in search of. . In line with the SIB philosophy, the sustainability of the employed materials represents a key parameter for the successful implementation of the developed materials in com. [pdf]
When used as the negative electrode in sodium-ion batteries, the prepared hard carbon material achieves a high specific capacity of 307 mAh g –1 at 0.1 A g –1, rate performance of 121 mAh g –1 at 10 A g –1, and almost negligible capacity decay after 5000 cycles at 1.0 A g –1.
In this work, we show the benefit of a mixed composite electrode containing ionic and electronic conducting additives for a sodium-ion battery negative electrode. Hard carbon electrodes with 5 % additive containing different proportions of zeolite and carbon black are coated.
Among the most promising technologies aimed towards this application are sodium-ion batteries (SIBs). Currently, hard carbon is the leading negative electrode material for SIBs given its relatively good electrochemical performance and low cost.
Therefore, N-doped hard carbon structures greatly enhance the rate performance of sodium-ion batteries (capacity of 192.8 mAh g –1 at 5.0 A g –1) and cycling stability (capacity of 233.3 mAh g –1 after 2000 cycles at 0.5 A g –1).
It comprehensively elucidates the key bottleneck issues of the hard carbon anode structure and electrolyte in sodium-ion batteries and proposes several solutions to enhance the performance of hard carbon materials through structural design and electrolyte optimization.
Previous research has shown that defects in hard carbon can have both positive and negative effects on the performance of sodium-ion batteries , , , , , .

The Future of Energy: 5 Battery Innovations in 2024/20251. Lithium-Sulfur Batteries The rise of electric vehicles (EVs) has underscored the need for improved lithium batteries. . 2. Solid-State Batteries Solid-state batteries — which use solid electrolytes instead of liquid electrolytes — received a lot of buzz in 2024. . 3. A More Circular Economy . 4. Silicon Anode Batteries . 5. Smart Battery Management Systems . [pdf]
New battery technology aims to provide cheaper and more sustainable alternatives to lithium-ion battery technology. New battery technologies are pushing the limits on performance by increasing energy density (more power in a smaller size), providing faster charging, and longer battery life. What is the future of battery technology?
Over the next decade, we expect developments in new battery technology to focus on low flammability, faster charging and increased energy density. New battery technology breakthrough is happening rapidly with advanced new batteries being developed. Explore the next generation of battery technology with us.
As the world transitions to renewable energy, advancing sustainable battery technology has been pivotal. Several promising innovations and trends are helping reshape the industry and are set to continue in 2025.
From more efficient production to entirely new chemistries, there's a lot going on. The race is on to generate new technologies to ready the battery industry for the transition toward a future with more renewable energy. In this competitive landscape, it’s hard to say which companies and solutions will come out on top.
98% of next generation end-market battery demand comes from the automotive and transport sector. S&P Global projects that the readiness of each future battery technology is dependent on how much the technology deviates from the existing Li-ion battery technologies.
As the world transitions to renewable energy, 2024 has been pivotal in advancing sustainable battery technology. Several promising innovations and trends are helping reshape the industry, making it possible to eliminate widespread dependence on fossil fuels to power everyday life. 1. Lithium-Sulfur Batteries

Lithium-ion batteries power everything from smartphones to electric vehicles today, but safer and better alternatives are on the horizon. . Li-on batteries have a number of drawbacks, which have affected everything from iPhone production to the viability of electric cars. Some of these problems include: 1.. . Let’s start with a battery technology that doesn’t stray too far from the Li-on baseline we’re familiar with. Sodium-ion batteries simply replace lithium ions as charge carriers with sodium. This single change has a big impact on battery production as sodium is far. . A lithium-ion battery uses cobalt at the anode, which has proven difficult to source. Lithium-sulfur (Li-S) batteries could remedy this problem. . Lithium-ion batteries use a liquid electrolyte medium that allows ions to move between electrodes. The electrolyte is typically an organic. [pdf]
Now Alsym Energy has developed a nonflammable, nontoxic alternative to lithium-ion batteries to help renewables like wind and solar bridge the gap in a broader range of sectors. The company’s electrodes use relatively stable, abundant materials, and its electrolyte is primarily water with some nontoxic add-ons.
Emerging alternatives could be cheaper and greener. In Australia's Yarra Valley, new battery technology is helping power the country's residential buildings and commercial ventures – without using lithium. These batteries rely on sodium – an element found in table salt – and they could be another step in the quest for a truly sustainable battery.
In addition, alternative batteries are being developed that reduce reliance on rare earth metals. These include solid-state batteries that replace the Li-Ion battery’s liquid electrolyte with a solid electrolyte, resulting in a more efficient and safer battery.
MIT researchers have now designed a battery material that could offer a more sustainable way to power electric cars. The new lithium-ion battery includes a cathode based on organic materials, instead of cobalt or nickel (another metal often used in lithium-ion batteries).
Yes, lithium-ion batteries contain valuable metals like cobalt and nickel that can be extracted during recycling. However, they need to be properly handled so very little effort goes into recycling them. Lithium-ion batteries power everything from smartphones to electric vehicles today, but safer and better alternatives are on the horizon.
“It is already competitive with incumbent technologies, and it can save a lot of the cost and pain and environmental issues related to mining the metals that currently go into batteries.” Dincă is the senior author of the study, which appears today in the journal ACS Central Science.
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