
钠离子电池是一种电化学储能电池,它以钠离子代替 锂 在充放电循环过程中,钠作为携带电荷的物质在阴极和阳极之间穿梭,其插入和萃取化学作用在机理上类似于锂离子,但受制于钠较大的离子半径、较低的还原电位和更高的地壳丰度。.
阴极材料技术主要分为三大类:
- 层状过渡金属氧化物
- 普鲁士蓝类似物
- 包括NASICON型磷酸盐和硫酸盐在内的多阴离子化合物
每种正极材料在比容量、电压平台、反复钠化下的结构稳定性以及合成成本方面都存在不同的权衡;没有一种正极材料像 NMC 和 LFP 在锂离子电池领域那样获得市场整合。
在阳极方面,石墨的钠插层能力微乎其微,因此并不适用,研究方向是将从生物质或树脂前体中提取的硬碳作为当前的实用标准,而金属钠阳极则是能量较高但容易产生树枝状突起的前沿领域。电解质配方--醚或碳酸盐溶剂中的 NaPF6 或 NaClO4 盐、离子液体或新出现的固态钠导体--关键性地决定了固态电解质的相间化学性质,而这种化学性质制约着第一周期的库仑效率、速率能力和日历老化。.
下面列出的出版物和专利涉及正极和负极材料合成、电解质工程、SEI表征、电池规格设计、形成协议优化以及系统级技术经济建模。
这是我们最新精选的有关钠离子电池的全球英文出版物和专利,涉及许多科学在线期刊,分类并侧重于钠离子电池、纳离子电池、钠离子阴极、层状氧化物阴极钠、普鲁士蓝模拟阴极、聚阴离子阴极钠、NASICON 阴极、硬碳阳极钠、软碳阳极钠、金属钠阳极、钠离子电解质、醚基电解质钠、钠盐电解质、NaPF6 电解质、钠离子、固体电解质和钠离子 SEI 层。.
Method for manufacturing anode active material layer and method for manufacturing secondary battery
Patent published on the 2026-06-11 in US under Ref US20260162953 by TOYOTA JIDOSHA KK [JP] (Imano Manabu [jp])
Abstract: A method for manufacturing an anode active material layer includes: a step of preparing an anode slurry by mixing an anode active material, a solid electrolyte, a conductive additive, a binder, and a solvent; a step of obtaining a parameter of the anode slurry using a dynamic viscoelasticity measuring device; a step of determining quality of a coating film based on the obtained parameter; and a step of applying the anode slurry that has been determined to be acceptable in the step of determining[...]
Our summary: The method involves preparing an anode slurry with specific components. It uses a dynamic viscoelasticity measuring device to obtain parameters of the slurry. The quality of the coating film is determined before applying the acceptable anode slurry.
anode active material, secondary battery, dynamic viscoelasticity, coating film quality
Patent
Negative electrode for all-solid-state sodium ion secondary battery, method for manufacturing same, and all-solid-state sodium ion secondary battery
Patent published on the 2026-06-11 in WO under Ref WO2026121155 by NIPPON ELECTRIC GLASS CO LTD [JP] (Tatsuoka Deguchi Mina [jp], Tsunoda Kei [jp], Demizu Masashi [jp], Yamauchi Hideo [jp])
Abstract: Provided are: a negative electrode for an all-solid-state sodium ion secondary battery, the negative electrode being capable of improving the initial charge/discharge efficiency, the conservation characteristics, the output characteristics, and the cycle characteristics of the all-solid-state sodium ion secondary battery; a method for manufacturing the negative electrode; and an all-solid-state sodium ion secondary battery. The negative electrode for an all-solid-state sodium ion secondary batte[...]
Our summary: This content describes a negative electrode designed for all-solid-state sodium ion secondary batteries. It highlights improvements in charge/discharge efficiency and cycle characteristics. Additionally, it outlines a manufacturing method for the negative electrode.
negative electrode, all-solid-state battery, sodium ion, manufacturing method
Patent
Solid electrolyte, method for producing same, and power storage device
Patent published on the 2026-06-11 in WO under Ref WO2026121260 by TOAGOSEI CO LTD [JP] (Hiraoka Hideki [jp], Goto Takeshi [jp])
Abstract: This solid electrolyte includes: a film-like porous body having communication holes; and molecular crystals containing, as structural units, an alkali metal salt and organic molecules having at least one type of atom selected from the group consisting of sulfur atoms, oxygen atoms, nitrogen atoms, and phosphorus atoms. The molecular crystals are retained in the communication holes.[...]
Our summary: The solid electrolyte features a porous film-like body with communication holes. It incorporates molecular crystals made from alkali metal salts and organic molecules containing specific atoms. These molecular crystals are securely held within the communication holes.
solid electrolyte, power storage device, alkali metal salt, molecular crystals
Patent
Method for manufacturing cathode active material layer and method for manufacturing secondary battery
Patent published on the 2026-06-11 in US under Ref US20260160658 by TOYOTA JIDOSHA KK [JP] (Imano Manabu [jp])
Abstract: [0000] A method for manufacturing a cathode active material layer includes: a step of preparing a cathode slurry by mixing a cathode active material, a solid electrolyte, a conductive additive, a binder, and a solvent; a step of obtaining a parameter of the cathode slurry using a dynamic viscoelasticity measuring device; a step of determining the quality of a coating film based on the parameter; and a step of applying the cathode slurry that has been determined to be acceptable in the step of de[...]
Our summary: The method involves preparing a cathode slurry with specific components. It measures the slurry s parameters using dynamic viscoelasticity. The quality of the coating film is determined before applying the acceptable slurry.
cathode active material, secondary battery, dynamic viscoelasticity, coating film quality
Patent
Solid electrolyte separator and all-solid-state battery comprising same
Patent published on the 2026-06-04 in WO under Ref WO2026116626 by SAMSUNG SDI CO LTD [KR] (Son Inhyuk [kr], Jo Sungnim [kr], Shim Kyueun [kr], Yun Jonghyuk [kr], Lim Hyungsub [kr], Park Taehyun [kr], Lee Jieun [kr])
Abstract: Provided are a solid electrolyte separator and an all-solid-state battery comprising same, the solid electrolyte separator: comprising a solid electrolyte and an ion-conductive polymer; and having an embossed portion formed on at least one surface thereof.[...]
Our summary: The content describes a solid electrolyte separator used in all-solid-state batteries. This separator consists of a solid electrolyte combined with an ion-conductive polymer. It features an embossed portion on at least one of its surfaces.
solid electrolyte, all-solid-state battery, ion-conductive polymer, embossed separator
Patent
All-solid-state battery
Patent published on the 2026-06-04 in WO under Ref WO2026116617 by SAMSUNG ELECTRO MECH CO LTD [KR] (Kim Junhyeon [kr], Jung Jihyung [kr], Lee Tae Gyeom [kr], Kim Nahyeon [kr], Kim Han [kr], Kim Doyeon [kr])
Abstract: Provided are an all-solid-state battery and a method of manufacturing the same. The all-solid-state battery includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer between the positive electrode layer and the negative electrode layer The solid electrolyte layer includes a first material and a second material The first material includes at least one selected from a lithium chloroboracite (LCBA)-based compound and a lithium borosilicate (LBSO)-based compound,[...]
Our summary: The all-solid-state battery consists of a positive electrode, a negative electrode, and a solid electrolyte layer. The solid electrolyte layer is made from a combination of lithium-based compounds and selected metals. A method for manufacturing this battery is also provided.
all-solid-state battery, solid electrolyte, lithium compounds, manufacturing method
Patent
Crosslinked Zwitterionic PVA-g-SBMA/PEDOT:PSS Networks for Mechanically Robust All-Solid-State Electrolytes
Published on 2026-01-28 by Chia-Wen Wei, Chia-Yu Chen, Shyh-Chyang Luo, Dmitry G. Belov, Szu-Nan Yang @MDPI
Abstract: Conventional lithium-ion batteries face issues like electrolyte leakage and interface instability. Solid-state lithium batteries with solid electrolytes address these, while solid-state polymer electrolytes (SPEs) offer safety and flexibility. This study primarily aimed to develop and synthesize a graft copolymer, PVA-g-SBMA, which was successfully synthesized by grafting [2-(methacryloyloxy)ethyl] dimethyl-(3-sulfopropyl)ammonium hydroxide (SBMA) onto poly(vinyl alcohol) (PVA). PVA provided exc[...]
Our summary: This study developed a graft copolymer, PVA-g-SBMA, by grafting SBMA onto PVA to enhance ionic conductivity and mechanical properties in solid-state electrolytes. The copolymer was crosslinked with PEDOT:PSS to form a robust network, improving film performance. The optimal system achieved a conductivity of 4.9 × 10⁻⁴ S/cm at room temperature with specific lithium salt concentrations.
Crosslinked, Zwitterionic, Solid-state, Electrolytes
Publication
Advances in Sodium Ion Batteries Based on Mixed Electrolytes of ILs and Organic Solvents
Published on 2026-01-28 by Sajjad Ghiyami, Claudio Mele @MDPI
Abstract: Sodium-ion batteries (SIBs) represent a topic of extreme interest in the research field, especially because the materials used are cheaper than those in lithium-ion batteries (LIBs). In SIBs, the choice of cathodes and electrolytes is very important because they will affect the energy density, cycling stability, and safety of the battery. This work focuses on the prospect of hybrid electrolyte cells that incorporate ionic liquids (ILs) into organic liquids in order to improve the safety and perf[...]
Our summary: This study explores the use of hybrid electrolytes combining ionic liquids and organic solvents in sodium-ion batteries. It highlights improvements in ionic conductivity, electrochemical stability, and thermal safety. The research suggests that these advancements could enhance the performance and lifecycle of sodium-ion battery technology for large-scale energy storage applications.
Sodium-ion batteries, hybrid electrolytes, ionic liquids, energy storage
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