12月10日至11日，深汕特别合作区举办"智汇深汕材兴未来"2025年新材料产业发展人才交流会。多位院 士专家在会上指出，智能光电、固态电池等前沿技术正驱动新材料产业突破瓶颈，催生低空经济、新能 源等万亿级市场，而产学研协同创新成为关键路径。 深圳商报·读创客户端记者 刘娥 液态锂离子电池潜力待挖，高端研发破解资源瓶颈 俄罗斯工程院外籍院士、哈尔滨工业大学教授王振波指出，液态锂离子电池远未成熟，需持续投入高端 研发。他透露，当前锂离子电池能量密度已从十年前的150Wh/kg提升至350Wh/kg，储能用电芯容量跃 升至628Ah，但磷酸铁锂电池能量密度天花板约220Wh/kg，三元材料则受钴资源限制。王振波以团队成 果为例，展示通过颗粒细化和界面调控，将富锂锰基材料容量提升至294mAh/g，并开发出超低温、超 高温特种电池，应用于南极科考车、油田井下设备等极端场景。他警示欧美政策壁垒加剧，强调"面对 万亿级市场，必须掌握核心技术主动权"，并点赞广东产业链布局，呼吁政府加大支持以破解低端产能 过剩问题。 美国国家人工智能科学院院士、南方科技大学创新创业学院副院长邵理阳强调，智能光电技术是打通智 能世界"视觉神 ...

Core Viewpoint - The A-share market saw a collective rise on December 5, with significant performance from the battery ETF, indicating strong investor interest in the energy equipment sector and the potential for growth in the new energy battery market [1] Market Performance - On December 5, the three major A-share indices rose collectively: Shanghai Composite Index increased by 0.48%, Shenzhen Component Index by 0.78%, and ChiNext Index by 1.06% [1] - The energy equipment sector led the gains, with notable increases in the electric grid ETF and photovoltaic ETF, both rising over 2% [1] Battery ETF Insights - The battery ETF (159755) tracks the National Index for New Energy Vehicle Batteries, covering upstream, midstream, and downstream sectors, with solid-state battery-related stocks accounting for over 65% of its composition [1] - The battery ETF has seen a significant inflow of funds, with nearly 60 instances of net inflow exceeding 7.016 billion yuan, bringing its total size to 14.745 billion yuan, making it the only battery-themed ETF exceeding 10 billion yuan [1] Investment Strategy - Pacific Securities suggests that the new energy sector is in the first half of an upward cycle, viewing adjustments as opportunities, emphasizing the importance of leading companies and upstream flexibility, with a focus on energy storage and AI+ during the adjustment period [3] - Guoyuan Securities highlights strong demand for energy storage, predicting a likely supply-demand balance in the liquid lithium-ion battery industry by 2026, with expectations for an increase in the price center of lithium carbonate [3]

Core Insights - The development of battery technology is primarily driven by energy density, which affects battery size and range, with solid-state batteries seen as the ultimate solution to current limitations [2][3] - Solid-state batteries are expected to significantly outperform traditional lithium-ion batteries in terms of energy density, safety, and cycle life, with laboratory results showing energy densities exceeding 400Wh/kg and potential theoretical values reaching 900Wh/kg [3][4] - Despite the promising outlook, the commercialization of solid-state batteries faces numerous challenges, including technical hurdles, manufacturing processes, and cost issues [5][6] Group 1: Current State of Battery Technology - The mainstream lithium-ion battery technology is approaching its energy density limits, necessitating breakthroughs in solid-state battery technology [1][2] - Solid-state batteries replace liquid electrolytes with solid electrolytes, addressing many safety concerns associated with liquid batteries [2][3] - The energy density of current lithium iron phosphate batteries is around 200Wh/kg, while high-nickel ternary materials reach about 300Wh/kg, indicating the need for new materials to push beyond these limits [2] Group 2: Advantages of Solid-State Batteries - Solid-state batteries offer three main advantages: higher energy density, improved safety due to non-flammable solid electrolytes, and longer cycle life, potentially exceeding 10,000 cycles compared to over 2,000 for liquid batteries [3][4] - The theoretical energy density of solid-state batteries can significantly surpass that of current lithium-ion batteries, making them a key focus for future development [3][4] Group 3: Challenges to Commercialization - The path to large-scale production of solid-state batteries is fraught with challenges, including the need for advancements in manufacturing processes and the high cost of raw materials [5][6] - Current production capabilities are limited, and achieving cost-effective, automated manufacturing processes remains a significant hurdle [6][8] - The solid-solid interface contact issues present a major technical challenge that must be resolved for successful commercialization [5][6] Group 4: Global Competition and Strategic Focus - Countries like Japan and South Korea are heavily investing in solid-state battery technology to catch up in the electric vehicle market, with various strategies and technological focuses [9][10] - The global landscape for solid-state battery development is competitive, with different regions prioritizing various technological pathways, including sulfide, oxide, and polymer electrolytes [9][10] - Collaborative efforts among large enterprises and small companies are encouraged to accelerate the development and commercialization of solid-state battery technologies [11]

Core Insights - The demand for longer range and higher safety in electric vehicles is driving the evolution of battery technology, with solid-state batteries seen as a promising breakthrough to overcome current energy density limitations [1][2] - Solid-state batteries are viewed as the ultimate solution for addressing range anxiety and safety concerns in electric vehicles, with significant advantages over traditional liquid lithium-ion batteries [3][4] Energy Density and Performance - Current lithium iron phosphate batteries achieve energy densities of 200 Wh/kg, while high-nickel ternary materials reach around 300 Wh/kg, nearing the limits of liquid lithium batteries [2] - Solid-state batteries can exceed 400 Wh/kg in laboratory settings, with some samples surpassing 500 Wh/kg, and theoretical limits reaching up to 900 Wh/kg [3] Safety and Longevity - Solid-state batteries offer higher safety due to the use of non-flammable solid electrolytes, which mitigate risks associated with liquid electrolytes [3] - The theoretical cycle life of solid-state batteries can exceed 10,000 cycles, significantly improving lifecycle cost compared to liquid lithium batteries, which typically last over 2,000 cycles [3] Commercialization Challenges - The path to large-scale commercialization of solid-state batteries is fraught with challenges, including technical hurdles, manufacturing processes, and cost considerations [5][6] - The first domestic large-capacity solid-state battery production line is expected to begin mass production between 2027 and 2030, but significant obstacles remain [5] Global Competition and Strategies - Countries like the EU, US, Japan, and South Korea are heavily investing in solid-state battery technology, with various strategic initiatives aimed at enhancing battery durability and reliability by 2030 [7][8] - Different countries are focusing on various technological routes, with Japan and South Korea leading in sulfide solid-state batteries, while the US and Europe are more focused on oxide and polymer routes [8][9] Material and Production Considerations - The production of solid-state batteries involves complex choices regarding materials and techniques, with a need for cost-effective and rapid industrialization pathways [6][9] - Composite electrolyte solutions are expected to become mainstream, as no single electrolyte can address all challenges faced by solid-state batteries [9] Collaborative Innovation - To capture the competitive edge in the global new energy market, there is a call for large enterprises to lead innovation consortia and for small to medium enterprises to engage in common technology research [10]

Core Viewpoint - The development of solid-state batteries is seen as a promising solution to enhance energy density and safety in electric vehicles, although significant challenges remain before large-scale commercialization can be achieved [1][2][3]. Industry Overview - The mainstream liquid lithium-ion battery technology is nearing its energy density limit, necessitating breakthroughs in battery technology [1]. - Solid-state batteries are viewed as the ultimate form of lithium batteries, addressing concerns related to range anxiety and safety [2][3]. Technical Advantages - Solid-state batteries can achieve energy densities exceeding 400Wh/kg in laboratory settings, with some samples surpassing 500Wh/kg, compared to the 160-300Wh/kg of current mainstream liquid lithium-ion batteries [3]. - They offer higher safety due to the use of non-flammable solid electrolytes, which mitigate issues like corrosion and leakage found in liquid electrolytes [3]. - The theoretical cycle life of solid-state batteries can exceed 10,000 cycles, significantly reducing the lifecycle costs compared to liquid lithium batteries, which typically last over 2,000 cycles [3]. Current Developments - Major automotive companies are actively researching new composite solid-state batteries to enhance performance metrics such as internal resistance and charging speed [4]. - The first domestic large-capacity solid-state battery production line has been established, with plans for gradual mass production between 2027 and 2030 [4]. Challenges to Commercialization - Solid-state batteries face multiple hurdles, including technological, manufacturing, and cost-related challenges that must be overcome before they can be commercially viable [1][4][6]. - The production process for solid-state batteries is complex, with significant investment required for specialized equipment and a need for automated production capabilities [6][8]. Global Competition - Countries like the EU, the US, Japan, and South Korea are heavily investing in solid-state battery technology, with various strategic initiatives aimed at accelerating development [7][8]. - Different regions are focusing on various technological routes, with Japan and South Korea leading in sulfide solid-state batteries, while the US and Europe are primarily exploring oxide and polymer routes [8]. Future Outlook - The solid-state battery industry is expected to grow significantly, driven by policy support and market demand for safer and more efficient energy storage solutions [1][7]. - Collaboration between large enterprises and small companies is encouraged to foster innovation and expedite the transition from research to practical applications [9][10].

Core Insights - A research team led by Huang Xuejie from the Chinese Academy of Sciences has successfully addressed the challenge of achieving tight contact between solid electrolytes and lithium electrodes in all-solid-state lithium batteries, marking a significant advancement in next-generation battery technology [1][3][6] Group 1: Breakthrough Technology - The new technology allows all-solid-state lithium batteries to operate effectively under low or no external pressure, overcoming the traditional reliance on heavy mechanical systems that apply over 5 MPa of pressure [2][3] - By introducing iodine ions into the sulfide electrolyte, the team created an iodine-rich interface that attracts lithium ions, ensuring a stable and tight contact between the electrode and electrolyte without external pressure [3][4] Group 2: Performance and Applications - The energy density of the new battery design can exceed 500 Wh/kg, significantly higher than current lithium iron phosphate batteries (approximately 200 Wh/kg) and ternary lithium batteries (up to 300 Wh/kg), potentially doubling the range of electric vehicles [4][5] - The removal of the external pressure system increases the volume of active materials within the battery pack, enhancing overall performance and safety [4][5] Group 3: Resource Efficiency and Sustainability - The new technology reduces reliance on scarce metals like cobalt and nickel by enabling the use of more abundant and cost-effective materials such as sulfur and sulfides for the positive electrode [5] - This shift aligns with sustainable development strategies in battery materials, addressing concerns over resource scarcity and price volatility [5] Group 4: Global Positioning - The breakthrough positions China as a partial leader in the global race for all-solid-state battery technology, moving from a significant "follower" to a key "leader" in the field [6] - The research has garnered international attention and praise, with experts acknowledging its potential to overcome critical bottlenecks in the commercialization of solid-state batteries [5][6]

Group 1 - Solid-state batteries are emerging as a key technology in the new energy sector, offering high energy density and safety advantages, thus accelerating their industrialization process [1][2][3] - Current liquid lithium-ion batteries face limitations in energy density, with a maximum of approximately 300Wh/kg, while the industry aims for over 350Wh/kg by 2025 and 400Wh/kg by 2030 [1][14] - The safety issues of liquid batteries are highlighted by a 32% increase in self-ignition rates for new energy vehicles in Q1 2023, with an average of 8 vehicles catching fire daily [2][15] Group 2 - Solid-state batteries can significantly enhance energy density by using lithium metal as an anode and solid electrolytes that can withstand higher voltages [2][22] - The global solid-state battery market is projected to grow from approximately 1GWh in 2023 to 3.3GWh in 2024, and further to 614.1GWh by 2030 [7][35] - In China, the solid-state battery market is expected to expand from around 1 billion yuan in 2023 to 17 billion yuan in 2024, and exceed 200 billion yuan by 2030 [7][35] Group 3 - The solid-state battery technology can be categorized into semi-solid and all-solid batteries, with semi-solid batteries currently leading in industrialization due to their lower electrolyte content [3][29] - Major global players in the solid-state battery sector include Solid Power and QuantumScape in the US, and Toyota and Panasonic in Japan, while Chinese companies like CATL and Guoxuan High-Tech are also making significant advancements [3][4][30] - The core competitiveness of solid-state batteries lies in breakthroughs in electrolyte technology, with polymer, oxide, and sulfide electrolytes being the main types under development [4][41] Group 4 - Interface performance is critical for solid-state battery efficiency, with various modification techniques being explored to enhance contact and reduce resistance [6][41] - The solid-state battery supply chain is similar to that of liquid batteries, with a focus on material costs, which constitute a significant portion of overall expenses [39][41] - The solid-state battery industry is witnessing increased investment and research, with numerous companies and research institutions actively pursuing advancements in this technology [30][39]

Summary of TianNai Technology Conference Call Industry Overview - Solid-state battery technology primarily includes three routes: sulfide, oxide, and polymer. Sulfide systems have high ionic conductivity but are costly and pose safety risks. Oxide and polymer systems offer advantages in cost and mechanical performance, with domestic commercialization favoring oxide systems. [2][3][4] Key Points - **Market Forecast**: It is expected that all-solid-state batteries will achieve large-scale commercial application by 2030, with oxide and polymer processes likely becoming mainstream due to safety and cost factors in the next five years. Sulfide systems may face challenges. [2][4] - **Technological Advancements**: TianNai Technology enhances the electronic conductivity of liquid lithium-ion batteries using carbon nanotubes and is developing dry processing techniques and composite current collectors. These innovations are significant for the development of solid or semi-solid lithium-ion power systems. [2][3][5] - **Composite Current Collectors**: The introduction of carbon nanotubes as fiber reinforcements in polymer membranes significantly improves strength and conductivity, achieving electronic conduction levels comparable to pure metal current collectors. [6] - **Demand for Single-Walled Carbon Nanotubes**: The demand for single-walled carbon nanotubes is expected to increase significantly in 2026 due to the poor intrinsic electronic conductivity of high-nickel cathode materials and the need for more conductive additives in dry processing. [8] Financial and Operational Insights - **Production Facilities**: TianNai Technology's U.S. factory is expected to commence operations by the end of 2025, while the German factory will start in three months. The U.S. investment tax policy is anticipated to accelerate equipment production. [3][18] - **Collaborations**: The company collaborates with major battery firms like Panasonic and LG, with plans for significant orders from LG in the future, particularly for lithium iron phosphate batteries. [20] Challenges and Risks - **Safety and Cost Issues**: Solid-state battery technology faces challenges related to safety and cost, particularly with sulfide systems. The commercial viability of solid-state systems requires breakthroughs in key materials and processes. [10][16] - **Market Dynamics**: The introduction of porous copper foil and composite current collectors is limited by cost factors, which may hinder widespread adoption until prices become acceptable. [9] Future Outlook - **Growth Projections**: Significant growth in shipment volumes is expected in 2025 and 2026, particularly for high-end products driven by fast-charging technology. Current monthly production capacity is about four tons, with projections of 30,000 tons for single-walled and multi-walled carbon nanotubes by 2026. [22] - **New Cathode Materials**: Progress in new cathode materials is promising, with fast-charging certifications underway. These materials outperform existing products in low-temperature conditions. [23] Competitive Landscape - **Technological Edge**: TianNai Technology possesses a strong technological advantage in fast-charging technology and focuses on continuous R&D to maintain its competitive edge. [25][26] - **Talent Importance**: The company emphasizes the significance of talent in driving technological advancements and achieving a leading position in the industry. [27]

Core Insights - The global power battery installation volume reached 221.8 GWh in Q1 2025, marking a year-on-year growth of 38.8% [3] - Chinese companies dominate the global power battery market, holding a combined market share of 67.5% in Q1 2025, up from 60.4% in 2022 [2][4] - CATL remains the largest player globally, with an installation volume of 84.9 GWh, representing a 40.2% year-on-year increase [1][4] Group 1: Market Performance - The top ten companies in global power battery installation volume include six Chinese firms, with a total market share of 67.5% [1][2] - BYD's battery installation volume grew by 62% to 37 GWh, securing the second position [1][5] - The overall market for power batteries is expanding, with significant contributions from Chinese manufacturers [2][5] Group 2: Company-Specific Insights - CATL continues to lead the market, supplying batteries to major global automakers like Tesla and BMW [4][12] - Honeycomb Energy has shown the highest growth rate at 100.2%, driven by a surge in orders and recognition of its short-blade battery technology [1][4] - Gotion High-Tech's battery installation volume surged by 86.6% to 7.7 GWh, indicating strong demand from various automakers [5][19] Group 3: Competitive Landscape - Korean manufacturers, including LG Energy, SK On, and Samsung SDI, have seen a decline in market share, collectively holding 18.7% in Q1 2025, down 4.6 percentage points from the previous year [9][10] - LG Energy's battery installation volume increased by 15.1% to 23.8 GWh, but its market share fell to 10.7% [9][11] - Samsung SDI reported a decline in battery installation volume, primarily due to weak demand for its products [10][11] Group 4: Future Trends and Innovations - The focus on solid-state batteries is intensifying, with companies like CATL and Gotion High-Tech investing heavily in this technology [13][14] - The energy storage sector is emerging as a new battleground for competition, with significant growth potential driven by rising demand for clean energy solutions [15][20] - Companies are diversifying their product lines to include energy storage systems, with LG Energy and CATL making significant strides in this area [18][19]