Battery makers expand silicon anode production

Spanish Market: Metals
29/01/21

Battery materials developers are increasing production of silicon anodes to substitute the graphite anodes in lithium-ion batteries, as they look to address the demand for batteries with higher energy density.

Demand from automotive manufacturers and governments to extend the driving range of electric vehicles (EVs) to encourage widespread adoption is prompting battery producers to look for ways to increase the length of time batteries can run between charges. And technological development of smart electronic devices is creating further demand for batteries with larger capacity.

US-based Enovix expects to start production of lithium batteries with silicon anodes during the third quarter of this year. It has begun installing equipment at its newly-constructed facility in California and will start equipment qualification within the next few months. Enovix has battery development agreements with a number of mobile device companies.

Enovix's 3D cell design uses silicon as the only active lithium cycling material in the anode, replacing graphite, and increases energy capacity by 30pc. The production process is designed to use much of the same manufacturing process as conventional lithium-ion batteries. It includes the same electrode fabrication process and the majority of packaging and formation. The company has developed production tools that are drop-in replacements for the tools in conventional lithium-ion battery cell assembly.

US-based Sila Nanotechnologies has raised an investment of $590mn to finance the construction of a new 100GWh plant in North America to produce silicon-based anode material to serve smartphone and automotive customers. That follows a recent investment of $10mn from the Advanced Research Projects Agency at the US energy department. The company plans to start production at the plant in 2024. It has partnerships with automakers BMW and Daimler and battery producer ATL.

Like Enovix, Sila has designed its material as a drop-in replacement for graphite in lithium-ion factories, enabling battery producers to increase the energy density of their products without having to change the manufacturing process or equipment. The silicon anode increases battery energy density by more than 20pc and enables fast charging.

In China, Gotion High-Tech said it has developed a new lithium-ion phosphate (LFP) battery cell that uses a silicon anode to create a high energy density of 210 Wh/kg. LFP batteries typically have an energy density up to around 160 Wh/kg, while nickel manganese cobalt (NMC) batteries have an energy density of 150-220 Wh/kg.

China Carbon Graphite Group is responding to the graphite substitution trend by developing a new silicon graphene nanocomposite product for lithium-ion batteries. The new product will replace graphite anode material to enhance the performance of EV and mobile device batteries. The silicon-based battery anode market is expected to have a high compound annual growth rate in the coming years, the company said.

Israel-based StoreDot, which is developing fast-charging batteries, is advancing the commercialisation of non-graphite anode batteries. It has produced the first batch of sample cells for potential customers to demonstrate the replacement of graphite with metalloid nanomaterials. EVE Energy, StoreDot's strategic partner in China, produced the cells. StoreDot's batteries are designed to be produced on EVE Energy's existing lithium-ion production lines, showing they can be produced without having to adjust equipment.

StoreDot plans to launch its second-generation prototype battery for EVs later this year with a silicon-based anode, shifting from the use of germanium in the first generation. The company has turned its focus to EVs from mobile devices as it has received investments from companies including BP and Daimler.

By Nicole Willing

Related news posts

Argus illuminates the markets by putting a lens on the areas that matter most to you. The market news and commentary we publish reveals vital insights that enable you to make stronger, well-informed decisions. Explore a selection of news stories related to this one.

27/12/24

Viewpoint: Indian FeCr to face pressure in 1Q 2025

Mumbai, 27 December (Argus) — India's ferro-chrome market is expected to remain under pressure in the first quarter because of muted spot demand as a result of sluggish stainless steel consumption. Producers will likely keep ferro-chrome output low in the coming months. The market is widely expected to remain sluggish until after the lunar new year holiday in February. There is little to no optimism that spot liquidity and supplier profit margins will increase in the short term, because demand from the stainless steel industry is weak. Prices for Indian high-carbon ferro-chrome 60pc fluctuated significantly in 2024. Prices hit a high of 120,000-121,000 rupees/t ($1,400-1,415/t) ex-works on 21 February, bolstered by tight ore availability and rising feedstock costs. But weak demand for stainless steel, both locally and globally, kept many market participants on the sidelines, causing prices to fall sharply in April-August, reaching Rs102,000-104,000/t ex-works on 20 August. Prices have since remained around this level, with the Argus assessment on 12 December at Rs104,000-106,000/t. Low demand from the stainless steel sector has effectively removed any possibility of a price recovery in the near term. Spot liquidity has been markedly lower than normal and a rebound is not expected. Volumes signed on long-term contracts for delivery in 2025 have also taken a dip and are at around 70-80pc of the volumes signed in 2023 for 2024 delivery. Weaker ferro-chrome demand and prices have led to lower production. India's ferro-chrome output declined from 1.3mn-1.4mn t in 2023 to an estimated 1.2mn t in 2024, and monthly consumption in the country is estimated to have decreased from 30,000-35,000t to 20,000-25,000t. Consumption is unlikely to rebound significantly until global and local stainless steel demand recovers. Suppliers typically turn to the export market when there is a supply surplus, with exports from India typically accounting for around 50pc of the country's output. But India's ferro-chrome exports are also falling. Shipments declined by 38pc year on year to 402,817t in January-September, compared with 648,475t over the same period a year earlier. Macroeconomic headwinds have dented global demand for stainless steel, and in turn ferro-chrome. European and Chinese demand was high in the first half of 2024 but has slowed significantly since then, with European buyers shifting their focus towards cheaper Kazakh material. Increased freight rates, port congestion and higher production costs have further weighed on exports. In addition, China has increased production and its domestic output now exceeds domestic consumption. This has weighed on domestic prices since August and increased supply in the export market. The market is unlikely to pick up until ferro-chrome inventories at China's port are consumed, a source told Argus . Decreasing demand and prices have made some suppliers' margins negative, forcing some to cut output by 50-60pc and others to shift their focus to producing manganese alloys, which offer stronger margins despite higher production costs. The cost of production for high-carbon ferro-chrome in India is around Rs116,000-119,000/t ex-works. Only producers with their own captive chrome ore mines are making a profit at present, sources said. Indian ferro-chrome suppliers also face issues with deteriorating chrome ore grade, which has led to increased production costs and lower-quality ferro-chrome output. The deterioration in ore quality is particularly evident in state-owned Odisha Mining Corporation (OMC) auctions — the premium for OMC's 50-52pc ore over its 48-49.99pc ore rose to above Rs1,000/t in early December. The higher premiums for high-grade ore, coupled with the drop in demand, have limited ferro-chrome producers' appetite to participate in OMC's auctions, as supply of high-grade ore is limited and only available at high premiums while low-grade ore is unfavourable as its consumption raises production costs. A lack of interest in OMC's monthly tender boosted this bearish sentiment and created further downward pressure on India's ferro-chrome prices. By Deepika Singh Send comments and request more information at feedback@argusmedia.com Copyright © 2024. Argus Media group . All rights reserved.

Viewpoint: Real, tariffs to hit Brazil steel imports

26/12/24

Viewpoint: Real, tariffs to hit Brazil steel imports

Sao Paulo, 26 December (Argus) — Steel importers in Brazil are likely to face a tougher market in 2025 as government measures and the Brazilian real's depreciation to the US dollar make products from abroad less attractive. Brazilian steel importers are concerned that tariff-quota and antidumping policy changes made this year by the federal and state governments could raise costs for importing cargoes in 2025, likely exacerbating the impacts of a sharply depreciated Brazilian real relative to the dollar. The concerns come as US president-elect Donald Trump is already raising global trade tensions, with specific focus on Mexico, Canada and China, that could unleash waves of dueling trade measures. After seeing strong import growth in the post-Covid-19 recovery, Brazil steel importers are fretting they may lose momentum. Brazil's steel imports year-to-date November rose by nearly 24.4pc to 5.6mn metric tonnes (t) from the same period a year earlier. They are expected to end the full year 2024 up by 24pc, according to steel association Aco Brasil, after climbing by 50pc in 2023. Apparent consumption rose by 9.6pc to 24mn t in the 11 months through November, while production increased by just 5.6pc to 31.17mn t from a year earlier. Even with a 28pc depreciationof the real to the dollar in the 12 months through 24 December, prices for dollar-denominated steel imports still have a cost advantage over domestically produced steel. But that advantage is narrowing as the real weakens, with the price difference from imports over the domestic market narrowing to just $112/t in the latest assessment for hot-rolled coils (HRC) from $172/t in mid-October . "The dollar's [appreciation to the real] is messing up imports," one market participant told Argus , saying a wider price advantage for importers was necessary to offset issues like the exchange rate risk and the shipping time. Market participants also cited rising borrowing costs in Brazil as an additional challenge for imports, as many buyers rely on financing to purchase material from abroad. Brazil's central bank on 11 December unexpectedly hiked its target interest rate by a full percentage point to 12.25pc , citing the country's uncertain fiscal situation, accelerating inflation and challenging external conditions. Importers recently expressed concerns over Santa Catarina state's decision to no longer grant tax incentives for imports of six different steel and iron products for commercialization or resale in 2025. Although the timeline for implementing the measure was postponed to July and could face changes, importers remain concerned and are monitoring any possible reviews of the decision, sources told Argus . Santa Catarina's main port, Sao Francisco do Sul, accounted for over one-third of every steel product that is imported to Brazil from January to September, according to data from the country's distributors association, INDA, published in September. On the federal front, the government is likely to announce new and renewed antidumping measures for products coming mainly from China, Brazil's largest steel supplier. Another obstacle for importers would be a possible review of the tariff system for steel imports, which was implemented in June 2024 and led to additional tariffs of up to 25pc. The measure proved mostly ineffective at curbing imports into Brazil, and the industry group Aco Brasil said it would ask for adjustments . Despite the challenges, there is still room for importers to bring material to Brazil , as the country lacks steel to supply its domestic demand, another market participant said. "Brazil will always need imports because it still lacks some key home-made products to feed its market," the participant said. By Carolina Pulice Send comments and request more information at feedback@argusmedia.com Copyright © 2024. Argus Media group . All rights reserved.

China's GFEX launches polysilicon futures contracts

26/12/24

China's GFEX launches polysilicon futures contracts

Beijing, 26 December (Argus) — China's Guangzhou Futures Exchange (GFEX) has launched futures contracts and options for polysilicon today. This is the third contract that GFEX has launched, following the launch of its contracts for silicon metal in December 2022 and lithium carbonate in July 2023. The launch of polysilicon contracts is aimed at easing a supply surplus and ensuring market development, given increasing new capacities at polysilicon producers and lower-than-expected demand from the downstream silicon wafer industry in the past two years, according to market participants. The new contracts are for benchmark N-type polysilicon and substitute P-type polysilicon. The exchange has set a premium of 12,000 yuan/t ($1,644/t) for the N-type over the P-type. It is offering seven contracts starting from June 2025 until December. The most-traded June contracts for N-type polysilicon on the GFEX closed at Yn41,570/t on 26 December, up from the launch price of Yn38,600/t, with trading volumes totalling 301,655 lots, equivalent to around 905,000t. GFEX has established delivery points for the new contracts in eight provinces, including Inner Mongolia, Sichuan, Yunnan, Shaanxi, Gansu, Qinghai, Ningxia and Xinjiang. Output and consumption in these regions account for 93.1pc and 91pc of the country's total output and consumption respectively, according to GFEX. South China-based GFEX launched in April 2021 and is partly owned by China's four operational futures exchanges — the Shanghai Futures Exchange, Zhengzhou Commodity Exchange, Dalian Commodity Exchange and the China Financial Futures Exchange — with each holding a 15pc stake. Market reaction Some market participants expect the new futures contracts will ease pressure from ample spot inventories and shore up spot market sentiment in the coming months. But the market has yet to see immediate effects on the first trading day. Argus -assessed domestic prices for 5-5-3 grade silicon metal — a key feedstock in the production of silicon powder, which is the feedstock for polysilicon — held at Yn11,200-11,400/t delivered to ports on 26 December, unchanged from 24 December given limited buying interest from consumers. The most-traded February contracts for 5-5-3 grade silicon on the GFEX closed at Yn11,190/t on 26 December, down from Yn11,585/t on 25 December. China is the world's largest polysilicon producer, producing 1.74mn t during January-November, up by 33pc from a year earlier, according to data from the China nonferrous metals industry association (CNIA). It has an production capacity of over 2mn t/yr, according to industry estimates. Send comments and request more information at feedback@argusmedia.com Copyright © 2024. Argus Media group . All rights reserved.

Japan’s crude steel output to recover in FY2025: IEEJ

26/12/24

Japan’s crude steel output to recover in FY2025: IEEJ

Tokyo, 26 December (Argus) — Japan's crude steel output is expected to recover during April 2025-March 2026, given higher output in wider domestic industries, according to government affiliated think-tank the Institution of Energy Economy Japan (IEEJ). The country's crude steel output will increase by 4.1pc on the year to 86.5mn t in 2024-25, according to the IEEJ's projection on 24 December. This will mark the first year-on-year growth in four years. A recovery is mostly attributed to an uptrend in wider domestic industrial sectors including automobile, electric and industrial machinery, IEEJ said. It sees domestic car output increasing by 1.8pc to 8.9mn units from a year earlier. IEEJ did not provide further details, but it suggested that expanding investment for digital and green transformation will underpin the steel demand throughout the period. The think-tank also predicts that the country's steel product exports will increase by 1.2pc on the year following an upward trend in the global manufacturing sectors. Japan delivered around 32mn t of steel products overseas during 2023-24, according to the industry group the Japan Iron and Steel Federation (JISF). The country's crude steel output has been sluggish throughout 2024, partly owing to weak demand from the construction and automobile sectors. Rising material costs and labour shortages have led to fewer construction projects in the country, weighing on steel demand. Operational suspensions at major auto manufacturers including Toyota and Daihatsu, following alleged false reporting on safety test results, also pressured steel demand. This partially led to the tenth consecutive month of year-on-year decline in booked orders of ordinary steel for car use in October, according to JISF. By Yusuke Maekawa Send comments and request more information at feedback@argusmedia.com Copyright © 2024. Argus Media group . All rights reserved.

Viewpoint: US tariffs, new EAFs may alter scrap flows

24/12/24

Viewpoint: US tariffs, new EAFs may alter scrap flows

Pittsburgh, 24 December (Argus) — A wave of new electric arc furnace steel mills coming on line next year could transform scrap flows in North America, while looming US import tariffs could stunt cross-border trade. Six steel mills in the US and Canada, accounting for about 9.9mn short tons (st)/yr of electric arc furnace (EAF) production, are ramping up from late this year or scheduled to start up in 2025. The new EAFs, mostly along the Mississippi River and in Ontario, could be magnets for scrap and reshape flows across the southeast, Midwest and Canada, as scrap-fed EAF steelmakers continue to expand their role in North America, which was historically dominated by coal and iron ore-fed blast furnaces. Although some scrap dealers are optimistic about markets in the new year, market participants are carefully monitoring the effect president-elect Donald Trump's hawkish trade policies could have on scrap trading. Trump has pledged to impose 25pc tariffs on US imports from Canada and Mexico that could further shift North American scrap flows. Canada is the largest shipper of ferrous scrap into the US at an average of 3mn metric tonnes (t)/yr since 2021. Prime scrap imports between January and October this year averaged 47,000t/month, while shred imports averaged 70,000t/month, US customs data shows. The import tax would drive up the cost of Canadian scrap for US buyers and potentially reduce supply available to steel mills in the Midwest. Scrap traders noted that Trump can be unpredictable and may be using the threat of tariffs as leverage. "I'm pretty tepid on the first quarter," one Midwest dealer said. "People are trying to figure out how serious Trump is on tariffs." New EAFs to drive scrap demand The new scrap-fed EAFs in North America include Algoma Steel in Ontario, Hybar in Arkansas, and Nippon Steel's and ArcelorMittal's joint venture in Alabama. US Steel's Big River Steel began melting scrap at its second Arkansas EAF in October. EAF steelmaker Hybar plans to open its 630,000 st/yr reinforcing bar mill in northeast Arkansas in the summer of 2025. Hybar, along with Big River Steel and three Nucor mills already in the region, could further bolster the lower Mississippi River basin as a major scrap market. "I'm looking forward to next year because of the increased competition," a Midwestern scrap dealer said. "It's always good to have options." The new consumption could position northeast Arkansas and Tennessee as perhaps the top scrap consuming region, making it an industry barometer in 2025. Chicago has historically held that position and has been the benchmark region in contracts. Shifting flows in Canada Algoma Steel plans to begin ramping up two new EAFs in Sault Ste Marie, Ontario, in March next year to continue making hot-rolled coil and steel plate. The EAFs could eventually bring that facility's maximum steel production levels to 3.7mn st/yr once they fully replace Algoma's blast furnaces. The steelmaker will likely focus on low-copper shred and prime scrap grades to keep up the iron content in its melt mix as it transitions to EAF steelmaking, one Canadian scrap consumer said. Algoma may also continue to rely on raw inputs like direct reduced iron and hot briquetted iron as it ramps up its scrap buying to feed the EAFs. Market participants in Canada expect the mill to buy scrap from the prairies west of Sault Ste Marie, as well as from the greater Toronto area to the mill's east, though Algoma will face competition to pull scrap from the latter region. Scrap dealers in the upper Midwest are also keen to supply Algoma Steel because buyers in that region are scarce. A Midwest dealer noted that Algoma may ship in scrap from US ports on the Great Lakes. Algoma did not respond to requests for comment on its raw material plans. In 2021, the company set up a joint venture with Triple M Metal, a Canadian scrap dealer with 45 yards, that will likely supply scrap for Algoma Steel in Sault Ste Marie. By James Marshall and Brad MacAulay US steel mill capacity additions Million short tons/yr Company Location Product type Capacity added Start date US Steel/Big River Steel Osceola, AR Sheet 3.00 RAMPING ArcelorMittal/Nippon Steel Calvert, AL Sheet 1.65 2H 2024 Algoma Steel Sault Ste. Marie, ON Sheet 3.70 1Q 2025 Nucor Lexington, NC Bar 0.43 1Q 2025 Hybar Osceola, AR Bar 0.63 2Q 2025 CMC Berkeley, WV Bar 0.50 4Q 2025 Total 9.91 Argus reporting & public statements Send comments and request more information at feedback@argusmedia.com Copyright © 2024. Argus Media group . All rights reserved.

Business intelligence reports

Get concise, trustworthy and unbiased analysis of the latest trends and developments in oil and energy markets. These reports are specially created for decision makers who don’t have time to track markets day-by-day, minute-by-minute.

Learn more