一种表面高熵内部中熵梯次掺杂高镍层状氧化物正极材料及其制备方法，通过在材料表面以五种以上的 元素进行掺杂，形成表面高熵重构层，同时材料内部以四种元素掺杂形成中熵掺杂结构。此方法能显著 提升富镍层状氧化物正极材料的循环稳定性，是一种工艺简单、成本低廉、操作便捷、性能优异的方 法，具有工业化生产应用前景。 天力锂能表示，上述专利证书的取得是公司重要核心技术的体现和延伸，预计对公司近期生产经营不构 成重大影响，但有利于公司进一步完善知识产权保护体系，促进公司持续创新能力，提升公司核心竞争 力。该专利技术的产业化应用尚需时间，实际经济效益存在不确定性。 中证报中证网讯(王珞)11月28日，天力锂能（301152）发布公告称，公司近日获得了国家知识产权局颁 发的发明专利证书，包括"一种降低高镍三元电极材料表面残碱的方法"和"一种表面高熵内部中熵梯次 掺杂高镍层状氧化物正极材料及其制备方法"。上述发明专利为公司自主研发，属于锂离子电池电极材 料技术领域。 一种降低高镍三元电极材料表面残碱的方法，能够有效去除高镍三元材料表面残碱阻抗层，大大提升高 镍三元电极材料表面残碱的去除效率，并显著增强高镍三元电极材料结构热稳定性、容 ...

Core Viewpoint - Tianli Lithium Energy has recently obtained an invention patent certificate from the National Intellectual Property Administration for a new lithium-ion battery cathode and its preparation method, which addresses key issues in battery performance and stability [1] Group 1: Patent Details - The invention patent is titled "A lithium-ion battery cathode and its preparation method and lithium-ion battery" [1] - The patent was co-developed by Tianli Lithium Energy and Hunan Yihua New Energy Co., Ltd., focusing on the field of lithium-ion battery materials [1] Group 2: Technical Advancements - The patented technology aims to solve problems related to side reactions at the cathode/electrolyte interface under high voltage (>4.5V), which can lead to transition metal dissolution, capacity decay, and limited rate performance [1] - This advancement is expected to enhance the stability of lithium-ion batteries significantly [1]

摘要显示，为克服现有电解液存在高压不稳定，影响锂离子电池高温电化学性能的问题，本发明提供了 一种锂离子电池，包括正极、负极和非水电解液，所述正极包括含有正极材料的正极材料层，所述非水 电解液包括非水有机溶剂、电解质盐和添加剂，所述添加剂包括氟代碳酸乙烯酯和第一添加剂，所述第 一添加剂包括结构式1所示的化合物：结构式1，其中，X选自或，R1、R2各自独立选自H、、或，R1和 R2不同时选自H，且X、R1和R2中至少含有一个硫原子；所述锂离子电池满足以下条件：0.5≤(a+10c)/b K90≤150，且0.5≤a≤9，0.1≤b≤3，0.01≤c≤1.1，0.1≤K90≤25。 经济观察网天眼查APP显示，近日，深圳新宙邦（300037）科技股份有限公司申请的"一种锂离子电 池"专利公布。 ...

Core Viewpoint - Shenzhen Haopeng Technology Co., Ltd. has recently published a patent application for a new battery structure and cell design, focusing on improvements in lithium-ion battery technology [1] Company Summary - The patent involves a novel cell structure that includes specific regions in both the anode and cathode, aimed at enhancing the overall flatness and structural integrity of the battery cell [1] - The anode features a first flat region, a second flat region, and a fourth flat region, while the cathode is positioned between the second and fourth flat regions [1] Industry Summary - The innovation addresses the thickness discrepancy at the head of the cell, which is a common issue in battery design, thereby potentially improving performance and reliability in lithium-ion batteries [1] - The development of this patent indicates ongoing advancements in battery technology, which is crucial for the electric vehicle and renewable energy sectors [1]

Group 1 - China maintains a dominant position in the global lithium battery market, while other countries are attempting to reduce their reliance on Chinese batteries. Sodium-ion batteries are seen as a potential shortcut for these countries, but data indicates that China will again lead in this field [1][2][13] - The widespread application of sodium-ion batteries in electric two-wheelers, known as "little electric donkeys," is noted, with prices ranging from $400 to $660 and rapid charging capabilities [1][4] - Chinese manufacturers, including Yadea, are at the forefront of sodium-ion battery production, indicating the rapid development of China's clean technology industry [1][2][5] Group 2 - China is among the first countries to launch sodium-powered vehicles, with CATL planning to mass-produce sodium-ion batteries for heavy trucks and cars under the new brand Naxtra [2][5] - The market for sodium-ion batteries is expected to grow significantly, with projections indicating that by 2030, 15% of China's electric two-wheelers will be powered by sodium-ion batteries, up from just 0.04% in 2023 [5][9] Group 3 - Sodium-ion batteries are considered safer than lithium-ion batteries due to their more stable chemical properties, which reduce the risk of overheating and combustion [10][11] - The global market for energy storage is anticipated to grow rapidly, with the International Energy Agency estimating that global energy storage capacity needs to increase nearly 35 times by 2030 to achieve net-zero emissions by 2050 [9] Group 4 - China holds nearly 60% of the global lithium refining capacity, while sodium is more abundant and easier to source, potentially lowering production costs and alleviating supply chain bottlenecks [10][11] - The development of sodium-ion batteries is seen as a strategic move for Chinese companies to maintain competitiveness in the global market, with significant advancements already made by companies like CATL [13][15]

Group 1 - Zhuhai Guanyu Battery Co., Ltd. has applied for a patent titled "A Negative Electrode Sheet and Lithium-Ion Battery," with publication number CN119890219A, filed on December 2024 [1] - The patent aims to improve lithium-ion battery technology by providing a negative electrode sheet that reduces lithium plating and dendrite formation, enhances edge lithium plating window, and lowers the risk of thermal runaway caused by dendrite penetration [1] - The negative electrode sheet features a non-active material layer that replaces traditional ear protection glue, which can reduce the overall thickness of the battery cell and increase energy density [1] Group 2 - Zhuhai Guanyu Battery Co., Ltd. was established in 2007 and is primarily engaged in the manufacturing of electrical machinery and equipment [2] - The company has a registered capital of 1,121.857134 million RMB and has made investments in 10 enterprises [2] - The company has participated in 120 bidding projects and holds 3,050 patent records along with 42 trademark records and 376 administrative licenses [2]