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Honda Pursues New Blended Silicon-Carbon EV Batteries
发布:2026-05-29
· 事件:2026-05-29
Nexeon silicon anode battery materials give higher energy density May 28, 2026 6 seconds Tina Casey 0 Comments Support CleanTechnica's work through a Substack subscription or on Stripe . The vehicle e...
Nexeon silicon anode battery materials give higher energy density
May 28, 2026
6 seconds
Tina Casey
0 Comments
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The vehicle electrification movement has been running on three cylinders in the US, but it’s a big world out there. In the latest development on the global EV scene, the Xcelerator Ventures branch of the Japanese powerhouse Honda has just become a shareholder in the UK firm Nexeon, putting the automaker front and center in the race to bring silicon EV batteries to the market.
Honda Wants More EV Batteries
The Nexeon investment is part of Honda’s long term plan announced back in 2022, wherein the company pledged to invest $10 billion per year to ramp up its electrification journey with support from Xcelerator Ventures. In battery procurement, Honda mapped out regional supply chains for lithium-ion EV batteries including GM’s Ultium line in North America (since
rebranded
), an expansion of its existing relationship with CATL in China, and a new partnership with Envision AESC in Japan.
The 2022 announcement also looked to the future, including a $43 billion yen investment in a demonstration line for Honda’s ongoing all-solid-state battery program.
“In the areas of
electrification technologies, including batteries
, as well as software and connected technologies, for the acceleration of its development efforts, Honda will strive for a significant enhancement of development capabilities,” Honda emphasized, adding that it will “proactively pursue inter-industry collaboration and alliances, as well as investments in startups.”
Nexeon Has Silicon EV Batteries Up Its Sleeve
That brings us to the Xcelerator investment in Nexeon. The deal was announced earlier today without disclosing the sum, but let’s guess it was substantial. In 2022 Nexeon announced
a strategic partnership
and investment with the Korean firm SKC, totaling $170 million over two rounds. “Additionally, a further US$50m of commercial investments is being made in Nexeon’s technologies as a consequence of the investment round,” the company noted.
Nexeon crossed the
CleanTechnica
radar the following year, when Panasonic announced that it would be manufacturing EV batteries in the US, deploying “
special silicon anode material
” from Nexeon, at its forthcoming factory in De Soto, Kansas.
In a press statement announcing plans for the new factory, Panasonic summarized what all the fuss is about. “Silicon materials are considered the key to boosting battery performance because their theoretical capacity is approximately 10 times than that of graphite, which is currently commonly used as an anode material,” the company noted.
“However, there is a hurdle to increasing the percentage of silicon in anodes as problems arise from its expansion characteristics when the cells are charged, resulting in battery capacity fade,” they added, with the implication being that Nexeon has solved the expansion problem (see lots more
silicon battery background here
).
Blended Silicon Anodes Win UK Seal Of Approval
With Honda investment in its pocket, Nexeon will continue developing its new anode. “Nexeon’s silicon anode technology is a cornerstone of next-generation energy storage,” the company emphasizes.
That remains to be seen, but last year the company did get the seal of approval from the UK’s Advanced Propulsion Center, in a report titled, “Electrical Energy Storage Innovation Opportunity Report, 2025.” The report name-checked Nexeon’s silicon-blended anodes among the three most commercial-ready innovations in the UK for 2025, listing:
Improved energy density and range: Silicon can significantly increase a cell’s gravimetric energy density, which in turn
boosts electric vehicle (EV) range
by reducing anode mass.
Cost reductions: While currently more expensive, this technology is expected to lead to lower cost cells and battery packs in the long term.
Alleviating supply chain constraints: Silicon-blended anodes can help reduce graphite consumption, potentially easing supply chain limitations.
Market access: Si-blended anodes can be used across the entire existing and potential lithium-ion transportation battery market that uses graphite anodes.
“By 2030, it is anticipated that up to 25% of the global Battery Electric Vehicle (BEV) market will utilize graphite and silicon-blended anodes (<20% Si),” Nexeon notes.
Meanwhile, Here In The USA…
Nexeon is not waiting around for the investor grass to grow under its feet. Last December the company announced that its first blended silicon-carbon plant is production-ready, located in Gunsan, Korea.
Among other strategic advantages of the Gunsan location, Nexeon cites “direct access and proximity to leading Asian battery cell producers, accelerating integration into their existing battery supply chains.”
“The successful commissioning of the Gunsan production plant positions Nexeon for sustainable and low-risk capacity expansion,” Nexeon emphasized.
If