Core Insights - The article discusses the development of a new type of battery technology known as the "negative-free battery," which allows lithium ions to deposit directly on the current collector surface without pre-installed active materials, differing from traditional graphite and lithium metal batteries [1][2]. Industry Developments - Contemporary advancements include CATL's launch of the "self-generating negative electrode" technology in April 2025, which significantly enhances energy density and cycle life by increasing ion conduction speed by 100 times and lithium deposition particle size by 10 times, while constructing a self-protective layer to suppress side reactions [2]. - BYD has publicly disclosed a patent for a negative-free battery that utilizes a porous sponge-like current collector, gradually enhancing lithium affinity from one side to the other, and incorporating lithium, sodium, and magnesium to lower the kinetic barriers of electrochemical reactions, guiding lithium ions to preferentially deposit at the bottom for stable growth [2]. Company Focus - Attention is drawn to Zhongyi Technology, a key player in negative-free technology, which has over a decade of experience in the copper foil sector. The company focuses on high-performance electrolytic copper foil, with its patented lithium-copper integrated composite negative electrode material designed to suppress lithium dendrite growth, reduce impedance, and improve lithium-ion electrochemical performance, resulting in superior battery cycle stability [2].

Investment Rating - The investment rating for the industry is "Positive" [3] Core Viewpoints - The release of new products and technologies by CATL marks a significant advancement in the fast-charging battery sector, with the introduction of the second-generation Shenzhou supercharging battery capable of 800 km range and peak 12C fast charging [4][14] - The industry is entering a "fast charging parity" phase, where charging efficiency is crucial for increasing the penetration rate of new energy vehicles in China [15][20] - The demand for high-pressure dense lithium iron phosphate materials is expected to grow due to the fast-charging trend, although the current public charging infrastructure is insufficient to support the widespread adoption of peak 12C fast charging [21][24] Summary by Sections New Products and Technologies - CATL introduced four new products: 1. Second-generation Shenzhou supercharging battery with 800 km range and peak 12C fast charging [4][14] 2. Sodium new 24V heavy truck start-stop integrated battery, operational at -40℃ with an 8-year lifespan, set for mass production in June 2025 [4][29] 3. Sodium new passenger vehicle power battery, the world's first large-scale production sodium-ion battery, with a pure electric range exceeding 500 km, planned for mass production in December 2025 [4][6] 4. Xiaoyao dual-core battery system, allowing cross-system and cross-voltage operations [4][6] Industry Trends - The fast-charging technology has reached a breakthrough at the battery level, with subsequent improvements in charging efficiency primarily dependent on the enhancement of charging infrastructure and grid compatibility [21][24] - The penetration rate of new energy vehicles in China is expected to reach 47.6% by 2024, with charging efficiency being a key factor in this growth [20][21] - The current public charging infrastructure is inadequate for the demands of peak 12C fast charging, necessitating significant upgrades [24] Sodium Battery Developments - The performance of CATL's sodium new passenger vehicle power battery is comparable to lithium iron phosphate batteries, with an energy density of 175 Wh/kg and a cycle life exceeding 10,000 cycles [30][32] - The current cost of sodium batteries is higher than lithium batteries, primarily due to the high cost of hard carbon and the lack of a scaled supply chain [32][30] - The sodium battery is expected to find niche applications in the market once cost reductions are achieved through scaling [32]

宁德时代 还 强调，第二代神行电池在全温域、全 SOC （剩余电量）区间均能提供强劲动力，即 使在亏电状态下仍具备 830kW 的输出功率；在零下 10℃ 低温亏电的严苛环境下，依然能满足百 公里加速的动力需求。 为实现上述性能，该电池采用了多项技术革新。 其中 正极应用了碳包覆纳米超导技术。负极则改进为超晶石墨，通过精准设计石墨表面的亚埃米级 传导颗粒，大幅提升锂离子嵌入速度并降低电阻。 摘要 动力电池从"参数推动"进入"需求引领"时代。 今日， 宁德时代在其首次科技日上，发布了一系列旨在巩固其行业领导地位的新型电池产品与技 术。 发布重点包括第二代神行超充电池、 " 钠新 " 钠离子电池系列、自生成负极技术， 以及整合了以 上创新的 全新的 " 双核 " 电池架构。 二代神行：兼顾 800 公里续航与 12C 超充 宁德时代 首先推出 第二代神行超充电池 。 基于磷酸铁锂化学体系 ， 二代神行 电池可提供 800 公里续航里程， 同时 支持高达 12C 的峰值充电倍率，对应 1.3MW 的充电功率，实现 5 分钟补 能 520 公里。 这一性能指标超过了比亚迪于 3 月初发布的第二代刀片电池，后者宣称支持 ...

Core Viewpoint - The article emphasizes that the development of power batteries has transitioned from being driven by parameters to being led by demand, marking a new era in the industry [19]. Group 1: New Battery Products and Technologies - CATL launched several new battery products and technologies at its first Technology Day, including the second-generation Shensheng supercharging battery, "Sodium New" sodium-ion battery series, self-generating negative electrode technology, and a new "Dual-Core" battery architecture [2][19]. - The second-generation Shensheng supercharging battery offers a range of 800 kilometers and supports a peak charging rate of 12C, allowing for a 520-kilometer charge in just 5 minutes [3][5]. - The sodium-ion battery series has an energy density of 175Wh/kg and can operate in extreme temperatures from -40°C to 70°C, maintaining 90% usable capacity at -40°C [9]. Group 2: Technical Innovations - The second-generation Shensheng battery incorporates several technological innovations, including carbon-coated nano-superconducting technology for the positive electrode and ultra-crystalline graphite for the negative electrode, significantly enhancing lithium-ion insertion speed and reducing resistance [6][7]. - The self-generating negative electrode technology improves ion conduction speed by two orders of magnitude and reduces active ion consumption rate by nearly 90%, enhancing battery storage performance by 300% [11][12]. Group 3: Dual-Core Architecture - The "Dual-Core" architecture integrates different chemical systems within a single battery system, featuring a main energy zone for daily or fast charging needs and an extended energy zone utilizing self-generating negative electrode technology for high energy density and long range [13][14]. - This architecture includes five core functional features aimed at enhancing system performance, reliability, and safety, such as independent energy units and thermal management capabilities [15][16][17]. Group 4: Market Implications and Future Prospects - The multi-core technology signifies a shift in the power battery development landscape, moving towards deep customization without compromising on range, low-temperature performance, lifespan, safety, or fast charging [19]. - The application of multi-core technology is expected to accelerate the industrialization of new energy solutions across various sectors, including electric buses, heavy trucks, aircraft, ships, and commercial energy storage [20].