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全固态电池固固界面“破局”进度
起点锂电· 2025-03-18 09:55
今年以来,固态电池相关概念股股价水涨船高,其背后固然有资本炒作的成分,但更为重要的是,固态电池产业进程明显提速。 但多位行业内技术大牛对此持保守态度,例如曾毓群表示:"用数字1到9表示成熟度,当前行业最高水平只到了4左右,处于器件样品实验验证 阶段。" 这也意味着,固态电池距离大规模产业化还有很长的路要走,因为欧阳明高院士和比亚迪孙华军也没有松口说固态电池何时能大规模量产。 曾毓群认为,研发全固态电池的关键在于对材料和化学体系,其中最难的就是固固界面问题。 全固态电池量产第一大难点:固固界面接触难题 由于取消了电解液,固态电池的电解质与界面是直接的固体接触,而固液接触是以浸润形式充分贴合,固体界面接触则很难充分贴合,因为面 积小导致界面接触阻抗高,锂离子通道减少和应力堆积问题显现。 01 电解液和电极的化学性质不同,导致相互接触后可能会发生化学反应,这在金属锂负极和电解质界面尤为常见。电池充放电过程中,锂离子在 负极表面不均匀沉积会形成锂枝晶,随着充放电过程的循环进行,锂枝晶逐渐延伸刺破隔膜导致电池的短路,带来严重的安全隐患。 界面抗阻问题也是固固界面一个需要攻克的点,锂金属负极体积变化和正极颗粒破碎,会导致 ...
宁德时代/欣旺达等领衔,锂电产业再掀扩产潮
高工锂电· 2025-03-17 10:29
Core Viewpoint - The global lithium battery industry is experiencing a new wave of capacity expansion since 2025, driven by the increasing demand in the power battery and energy storage markets, with major companies accelerating their investments and production plans [2][3]. Group 1: Capacity Expansion - Major companies like CATL, Ganfeng Lithium, and Samsung SDI are disclosing expansion plans across various regions including China, Southeast Asia, and Europe, targeting diverse applications such as power, energy storage, and electric tools [2]. - CATL has announced a new 40GWh battery capacity in Dongying, Shandong, adhering to "zero-carbon factory" standards and utilizing a high proportion of green electricity [3]. - By the end of 2024, CATL's total capacity is expected to reach 676GWh, with over 200GWh under construction, indicating a strong market growth outlook [3]. Group 2: Market Trends and Innovations - The expansion is not limited to battery production; it also includes upstream materials like silicon-based anodes and high-pressure lithium iron phosphate, which are becoming new investment focuses [3][6]. - Ganfeng Lithium is accelerating the industrialization of solid-state batteries, with a new 10GWh project in Nanchang, aiming to become a comprehensive manufacturing base for various battery types [5]. - The demand for cylindrical batteries is rising, with companies investing in new production capacities in Southeast Asia to meet the needs of electric tools and emerging applications [6]. Group 3: Financial and Operational Efficiency - As capacity utilization improves, the depreciation pressure from expansion is alleviating, with CATL's utilization rate reaching 80% in the second half of 2024, a 20 percentage point increase from the first half [4]. - CATL is leveraging technologies like super drawlines to enhance investment returns, aiming for capital expenditure growth to be lower than capacity growth [3]. Group 4: Market Sentiment and Caution - Despite the optimistic demand outlook, there are differing views on the growth of lithium battery demand, with some suggesting that the industry's sales and production have remained around 70%, indicating a need for cautious assessment of the expansion driven by optimistic demand expectations [7].
每日速递|大众汽车与宁德时代达成换电合作意向
高工锂电· 2025-03-05 10:37
Battery - Qingtao Energy has added three new models to its lineup, all utilizing lithium iron phosphate batteries with capacities ranging from 40-51 kWh [2] - China FAW Group's acquisition of a stake in Lishen (Qingdao) New Energy Co., Ltd. has been approved by the market regulatory authority [3] - Volkswagen China and CATL have reached a cooperation intention in the battery swapping sector, although specific plans are still in the planning stage [4] Materials - A new project for the annual production of 10,000 tons of silicon-based anode materials has commenced in Gansu Province, with a total investment of 1 billion yuan [4] - Ganfeng Lithium has activated its emergency supply channel plan due to a surge in cobalt prices caused by supply disruptions from the Democratic Republic of the Congo [5][6] - Tianji Co. has completed the main construction and equipment installation for its 6,000-ton high-purity lithium fluoride project and is set to begin trial production [7] - Huayou Cobalt's high-nickel ternary precursor project in Indonesia has completed its second phase of mechanical construction [9] Equipment - Aifake has developed a roll-to-roll vacuum deposition system for lithium on metal foils, set to begin sales in May 2025, which enhances lithium material efficiency and offers cost and environmental advantages [10]
固态电池|全固态电池有望27年装车,把握电池、材料、设备、资源端投资机会
中信证券研究· 2025-03-02 11:02
Core Viewpoint - The industry consensus on the timeline for solid-state battery deployment has converged to 2027 for small-scale production and 2030 for large-scale commercialization, indicating a clearer technological roadmap and increased demand for lithium resources and equipment [1][2][11]. Group 1: Solid-State Battery Deployment Expectations - Leading battery manufacturers and experts have indicated that solid-state batteries are expected to begin small-scale production by 2027, with large-scale commercialization anticipated by 2030 [2]. - The convergence of expectations suggests a clearer technological path, transitioning from single sulfide to mixed sulfide and halide materials, which will drive demand for lithium battery equipment and resources [2]. Group 2: Materials Sector - The materials sector is expected to develop along two main lines: the establishment of new solid-state electrolyte routes and the shared materials benefiting from the solid-state battery industry [3][4]. - The solid-state electrolyte routes are likely to stabilize, with a focus on sulfide materials by major players like CATL and BYD, while conductive agents and silicon anodes are projected to see increased usage in solid-state batteries [4]. Group 3: Equipment Sector - The lithium battery equipment sector is showing signs of recovery, with expectations for a dual rebound in orders and performance by 2025 as major manufacturers ramp up production capacity [5][6]. - The transition to solid-state battery manufacturing is expected to drive new investment in equipment, particularly as the industry prepares for significant advancements in production technology [6]. Group 4: Resource Sector - The demand for zirconium, a key raw material for oxide electrolytes, is projected to increase significantly, with expectations of reaching 78,000 tons by 2030, which is 395 times the demand in 2023 [7]. - The industrialization of sulfide and lithium metal anodes is expected to double lithium consumption, with significant advancements in production capabilities being reported [7]. Group 5: Future Events in the Solid-State Battery Industry - Major events in 2025 include the unveiling of Hyundai's solid-state battery production line and the Shanghai Auto Show, which are anticipated to be key platforms for solid-state battery developments [8]. - The introduction of new models featuring semi-solid-state batteries by SAIC's MG brand is expected to occur in Q2 2025, potentially marking a significant milestone in the commercialization of semi-solid-state battery technology [8].
亿纬锂能落子北京
起点锂电· 2025-02-21 10:04
倒计时7天 2025起点锂电圆柱电池技术论坛 暨圆柱电池20强排行榜发布会 活动主题: 聚集新 技术 探索新工艺 主办单位: 起点锂电、起点研究院(SPIR) 活动时间: 2025年2月28日 活动地点: 深圳宝安登喜路国际酒店2楼国际厅 活动规模: 500+人 在京布局,亿纬锂能也来了。 2月14日, 北京亿纬锂能有限公司登记成立,位于北京市丰台区,法定代表人刘金成,注册资本1000万元人民币。 | 工商信息 ● | | | | | 目 文字介绍 | 이 응出 | © 企音音 | | --- | --- | --- | --- | --- | --- | --- | --- | | 统一社会信用代码 | 91110106MAEBFUT273 | 企业名称 | 北京亿纬锂能有限公司 | | | | | | 法定代表人 | 2025-02-14 刘金成 路关联企业 36 | 登记状态 | 存续(在营、开业、在册) | 成立日期 | | | | | | | 注册资本 | 1000万元 | 实缴资本 | | | | | 组织机构代码 | MAEBFUT2-7 91110106MAEBFUT273 | 工商注册号 | ...
固态电池、打针补液,谁是锂电池的未来良方?
汽车商业评论· 2025-02-19 14:12
撰 文 / 钱亚光 设 计 / 师 超 2025年2月15日,2025中国全固态电池产学研协同创新平台年会暨第二届中国全固态电池创新发展 高峰论坛在北京举行,汇聚8位院士,6家行业组织、60多位专家学者以及200余家整车、电池、材 料企业,多家研究机构,以及多个地方政府代表,聚焦材料科学、新工艺新装备及产业前沿进展, 探讨全固态电池创新突破及挑战。 全国政协常委、经济委员会副主任,工业和信息化部原部长苗圩表示,固态电池产业化仍需解决技 术、工艺和成本的问题。从当前全球固态电池研发进展来看,量产技术工艺有待成熟,2027年前后 实现小批量生产。 中国工程院院士、中国全固态电池产学研协同创新平台专家委员会主任陈立泉回顾了固态锂电池研 究方面的发展历程和技术突破,梳理了全固态电池领域关键问题和难点,涵盖正极界面问题、负极 界面等问题。 中国科学院院士、中国全固态电池产学研协同创新平台理事长欧阳明高表示,当前要聚焦以硫化物 电解质为主体电解质匹配高镍三元正极和硅碳负极的技术路线,以比能量400Wh/Kg、循环寿命 1000次以上为性能目标,确保2027年实现轿车小批量装车,2030年实现规模量产。 中国科学院院士、厦 ...