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Biot-Savart Law: Problem-Solving00:59

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The magnitude and direction of a magnetic field created by a steady current can be calculated using the Biot-Savart law.
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Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
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Materials consisting of paired electrons have zero net magnetic moments. However, when these materials are placed under an external magnetic field, the moments opposite to the field are induced. Such materials are called diamagnets. Diamagnetism is the response of the diamagnets when placed in an external magnetic field.
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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
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In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
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磁性超粒子作为单层离子电池袋细胞中识别器

Sara Li Deuso1, Simon Ziegler2, Daniel Weber3

  • 1Department of Chemistry and Pharmacy, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058, Erlangen, Germany.

ChemSusChem
|October 10, 2024
PubMed
概括

磁性超粒子为离子电池 (LIB) 的非接触式识别提供了可靠的方法,这对于回收至关重要. 这项技术为光学标签提供了持久的替代品,支持电池护照要求和可持续材料回收.

关键词:
电池回收的回收方式数字产品护照数字产品护照标识 标识 标识 标识磁粒子光谱学 磁粒子光谱学超粒子是一种超粒子.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学
  • 回收技术的回收技术

背景情况:

  • 有效回收离子电池 (LIB) 需要可访问的信息,这导致了拟议的数字电池护照.
  • 目前使用光学标签的识别方法易受损坏,阻碍可靠的数据获取回收.
  • 欧洲电池法规强调了用于电池信息检索的机器可读标识符.

研究的目的:

  • 调查使用磁性超粒子 (SPs) 来无接触识别,,,氧化 (NMC) 电池袋细胞的可行性.
  • 评估磁粒子光谱法 (MPS) 作为一种基于独特的磁代码来区分多个电池的方法.
  • 评估SP集成位置对检测和潜在细胞性能影响的影响.

主要方法:

  • 开发和应用磁性超粒子 (SPs) 用于标记NMC电池袋电池.
  • 使用磁粒子光谱 (MPS) 来无接触检测和识别标有SP标签的细胞.
  • 在金属环境中的三个不同位置对SP集成的比较分析.

主要成果:

  • 通过使用磁性超粒子 (SP) 和磁性粒子光谱 (MPS) 成功无接触识别NMC电池袋细胞.
  • 根据SPs打印的独特磁密码,证明了区分多个囊细胞的能力.
  • 发现检测效率和对细胞性能的影响依赖于SP集成位置.

结论:

  • 磁性超粒子 (SPs) 与磁性粒子光谱 (MPS) 结合,为电池识别提供了可行的,耐损坏的替代品,而不是光学标签.
  • 这种磁标识技术即使在具有挑战性的金属环境中也有效,支持数字电池护照概念.
  • 这些发现为先进的选择性标签技术奠定了基础,以加强LIB回收和促进可持续性.