Caixin

Mass Production of Solid-State Batteries Enters Sprint (AI Translation)

Published: Mar. 1, 2025  2:13 p.m.  GMT+8
00:00
00:00/00:00
Listen to this article 1x
This article was translated from Chinese using AI. The translation may contain inaccuracies. Click the button on the right to hide or reveal the original version.
2024年9月3日,上海,第三届中国国际储能展,合源锂创展示的固态电池。
2024年9月3日,上海,第三届中国国际储能展,合源锂创展示的固态电池。

文|财新周刊 安丽敏

By Caixin Weekly An Limin

  国内全固态电池研发正在逼近世界领先水平。主流企业和专家预测,2027年将是固态电池小批量上车时间点。这基本与日本丰田汽车等全球龙头企业公布的时间表相近,固态电池角逐已到最后冲刺阶段。

The development of all-solid-state batteries in China is approaching world-leading levels. Leading companies and experts predict that 2027 will mark the time for small-batch production of solid-state batteries for vehicles. This timeline is roughly aligned with that announced by global leaders like Japan's Toyota Motor Corporation. The race for solid-state battery supremacy is in its final stages.

  “过去一年,国内固态电池研发进度相当于其他国家五年。”南方科技大学固态电池材料及器件研究中心教授许晓雄在2月16日举行的中国全固态电池创新发展高峰论坛上说。

"In the past year, the progress in solid-state battery research within China is equivalent to five years of work in other countries," Professor Xu Xiaoxiong from the Solid-State Battery Materials and Devices Research Center at Southern University of Science and Technology stated at the China All-Solid-State Battery Innovation and Development Summit Forum held on February 16th.

  液态电池主要由正负极材料、隔膜和电解液组成,属于成熟技术,已经大规模应用于手机、笔记本电脑和汽车等产品。固态电池用固态电解质替代了电解液和隔膜。行业之所以另起炉灶,将目光投向固态电池,是因为液态电池遇到技术瓶颈。

Liquid batteries primarily consist of cathode and anode materials, separators, and electrolytes. Being a mature technology, they have been widely applied in products such as mobile phones, laptops, and cars. Solid-state batteries replace the liquid electrolyte and separator with solid electrolytes. The industry's shift in focus to solid-state batteries is driven by the technical bottleneck faced by liquid batteries.

loadingImg
You've accessed an article available only to subscribers
VIEW OPTIONS
Disclaimer
Caixin is acclaimed for its high-quality, investigative journalism. This section offers you a glimpse into Caixin’s flagship Chinese-language magazine, Caixin Weekly, via AI translation. The English translation may contain inaccuracies.
Share this article
Open WeChat and scan the QR code
DIGEST HUB
Digest Hub Back
Mass Production of Solid-State Batteries Enters Sprint (AI Translation)
Explore the story in 30 seconds
  • China anticipates reaching world-leading levels in all-solid-state battery development, aiming for small-batch production by 2027, aligning with Japan's timeline.
  • Solid-state batteries promise higher energy density, improved safety, and simpler structures compared to traditional liquid batteries, despite production challenges.
  • Global competition intensifies with major players like Toyota, Mercedes-Benz, and Chinese companies advancing technology, driven by AI innovations for material research.
AI generated, for reference only
Explore the story in 3 minutes

[para. 1] In recent years, China has made remarkable progress in the development of all-solid-state batteries, approaching world-leading levels. Experts predict that Chinese companies will achieve small-batch production of these batteries by 2027, aligning with the timelines of global leaders like Japan's Toyota. This reflects a significant stride in the global race for solid-state battery supremacy.

[para. 2][para. 3] China's advancement is highlighted by Professor Xu Xiaoxiong, who noted that the country's past year's progress equates to five years in other nations. Unlike traditional liquid batteries, which use liquid electrolytes, solid-state batteries employ solid electrolytes, replacing both the liquid electrolyte and the separator. This shift addresses the limitations of liquid batteries, including safety risks and lifespan issues, as explained by industry experts like Xia Dingguo and Li Hong.

[para. 4] Solid-state batteries promise higher safety, energy density, and a simpler structure, driving global interest. However, achieving mass production remains a complex challenge due to the intricate system of materials and potential durability issues with solid electrolytes.

[para. 5] China currently dominates the liquid battery market, with companies like Contemporary Amperex Technology Co. and BYD holding significant market shares. Other countries find it challenging to compete in this sector, making solid-state batteries a new frontier for competition.

[para. 6] While Japan led the initial commercialization of lithium-ion liquid batteries, it was surpassed by South Korea and China. Now, Japan aims to regain dominance through mass production of solid-state batteries. This competitive landscape includes ambitious efforts from South Korean and American firms like Solid Power and QuantumScape.

[para. 7][para. 8] Domestically, China's research on solid-state batteries is accelerating. Reports indicate that a significant research fund has been established to bolster mass production efforts. Achieving even marginal success in solid-state battery production is essential for maintaining competitive advantage.

[para. 9][para. 10] The scientific community has yet to agree on the best material system for solid-state batteries, with various approaches like sulfide, oxide, and polymer electrolytes under exploration. Each has unique challenges, such as sensitivity to air humidity and manufacturing difficulties.

[para. 11][para. 12] Sulfide electrolytes are promising but come with high production costs and safety concerns. Companies like Toyota have established solid foundations in this sector thanks to their strong patent portfolios. Nonetheless, significant breakthroughs are necessary for mass production.

[para. 13][para. 14][para. 15] AI has the potential to revolutionize battery materials research, reducing development cycles and costs through advanced computational models. Companies like Galixir and CATL are leveraging AI to accelerate materials development and optimize production processes.

[para. 16][para. 17] Despite ongoing challenges, the timeline for solid-state battery mass production draws near, with companies aiming for breakthroughs in the coming decade. Mercedes-Benz and Chinese companies are actively working towards integrating solid-state batteries in vehicles.

[para. 18] The global battery market, dominated by China, Japan, and South Korea, is undergoing a transformation. The rise of solid-state batteries represents a chance for companies, including startups, to redefine their roles and possibly challenge established players.

[para. 19][para. 20] Industry leaders like CATL are investing in solid-state battery research to remain at the forefront. CATL's proactive approach ensures it stays competitive in an evolving market. Experts believe that while solid-state and liquid-state batteries will coexist for some time, solid-state batteries will increasingly find niche applications, heralding a new era of battery technology.

This summary synthesizes findings from various paragraphs in the original content, highlighting the key points and perspectives on solid-state battery development.

AI generated, for reference only
Who’s Who
Toyota Motor Corporation
丰田汽车
Toyota Motor Corporation has deep expertise in solid-state batteries, holding the most patents globally for sulfide-based electrolytes. Despite initially postponing mass production several times, Toyota's latest roadmap targets 2026 for solid-state battery production. They aim to leverage these advancements to regain a competitive edge in the battery sector.
CATL
宁德时代
CATL (Contemporary Amperex Technology Co., Limited) has initiated solid-state battery research early, focusing on maintaining its leadership. In 2024, CATL's net profit rose by up to 20.12%, and the company unveiled a Hong Kong research institute emphasizing AI for Science, investing over 12 billion HKD. Despite stakes in new technologies, CATL retains strong industry influence and is proactively enhancing its technological capabilities, even planning for a five-year depreciation cycle for new investments.
BYD
比亚迪
BYD is a major player in China's battery market, focusing on solid-state battery development. The company plans to achieve small-scale commercialization of solid-state batteries by 2027 and large-scale application by 2030. BYD's CTO, Sun Huajun, stated that the company is rapidly iterating and optimizing a model specifically for solid-state electrolyte research, leveraging AI to enhance development efficiency.
Mercedes-Benz
梅赛德斯-奔驰
Mercedes-Benz has announced that its solid-state battery products have entered road testing. Developed in collaboration with the U.S. startup Factorial Energy, these batteries use a lithium metal anode, achieving an energy density of 450 Wh/kg and potentially increasing range by 25%, enabling up to 1000 km on a single charge. Mercedes-Benz aims for mass production before 2030.
Factorial Energy
Factorial Energy
Factorial Energy is a U.S. startup that has entered a collaboration with Mercedes-Benz, which announced the road testing of solid-state battery products using Factorial's technology. Their partnership began in 2021, and Mercedes-Benz participated in Factorial's D-round financing in 2022. The solid-state batteries feature lithium metal anodes and have an energy density of 450 Wh/kg, potentially extending the driving range by 25% to reach 1000 km on a single charge.
Tesla
特斯拉
Tesla has been attempting to apply dry electrode processes to anodes and cathodes, which could be significant for solid-state battery production, although it hasn't fully realized this technology yet. The article highlights the importance of new production techniques like this in reducing costs and meeting the specific needs of solid-state battery materials.
Jiyang Technology
吉阳科技
Jiyang Technology, a battery equipment company, notes that the industry lacks dedicated production lines for solid-state batteries. The firm's chairman, Yang Rukun, highlights the need for scientists to finalize solid-state battery material systems before engineers can develop the necessary equipment. The company is watching the evolution of solid-state battery materials to enable production advancements.
Xuchen Technology
诩辰科技
Xuchen Technology (Guangzhou) Co., Ltd. develops lithium sulfide materials, focusing on sulfide electrolytes. Lithium sulfide boasts high ionic conductivity for fast charging, a broad electrochemical window, and compatibility with high energy density electrode materials. However, manufacturing challenges and safety concerns during thermal runaway with cathode materials are research focuses for improving sulfide solid-state battery safety.
Baosheng Energy Technology
宝晟能源科技
Baosheng Energy Technology is involved in developing new battery production processes. The company’s COO, Wu Haitao, highlighted their focus on a new dry electrode production technique that can reduce production stages and costs while meeting the specific requirements of solid-state battery materials. Tesla is also experimenting with this dry electrode process for both anodes and cathodes, although it hasn't fully implemented it yet.
Solid Power
Solid Power
Solid Power, an American startup, is involved in the global race to develop solid-state batteries. They aim to disrupt the existing battery market, alongside Japanese and Korean companies, by advancing in this new technology. Solid Power is part of a group of companies eager to reshape market dynamics through solid-state battery innovations.
QuantumScape
QuantumScape
QuantumScape, an American startup, is actively developing solid-state batteries with ambitions to disrupt the current battery market dominated by Asian companies. The article highlights that QuantumScape, alongside Korean battery firms and companies like Solid Power, is seeking to reshape the market landscape by focusing on the mass production of solid-state batteries, aiming to overcome the limitations of traditional liquid-based batteries such as safety and energy density challenges.
DeepPotential Technology
深势科技
DeepPotential Technology is not directly mentioned in the provided article content. However, the article highlights AI-driven scientific research, specifically mentioning AI applications in battery material development, such as those by DeepSeek and Beijing Shenshi Technology. These initiatives are aimed at accelerating material research and finding innovative solutions for solid-state batteries, potentially contributing to advancements similar to those in AI-powered material analysis and development.
Northvolt
Northvolt
In November 2024, European battery startup Northvolt filed for bankruptcy protection, marking a setback in Europe's efforts to establish a local battery industry and compete against China's dominance in the sector.
AI generated, for reference only
What Happened When
2024:
Regulators in China established a research and development fund of 6 billion yuan to encourage mass production of solid-state batteries for vehicles.
September 2024:
Mercedes-Benz claimed that solid-state batteries would be mass-produced and installed in vehicles before 2030.
October 2024:
CATL's Hong Kong Research Institute was officially inaugurated, focusing on AI for Science.
February 16, 2025:
Professor Xu Xiaoxiong stated at the China All-Solid-State Battery Innovation and Development Summit Forum that China's progress in solid-state battery research in the past year equates to five years of work in other countries.
February 24, 2025:
Mercedes-Benz announced that its solid-state battery products have entered the road-testing phase.
Between 2025 and 2027:
The first generation of solid-state batteries with lower energy density is expected to achieve a technological breakthrough.
AI generated, for reference only
Subscribe to unlock Digest Hub
SUBSCRIBE NOW
PODCAST
China Business Uncovered Podcast: Inside Vanke and China’s Property Reckoning
00:00
00:00/00:00