cathode
简明释义
n. 阴极（在电解池中，发生还原反应的电极）；正极（在原电池中，发生还原反应的电极）
复 数 c a t h o d e s
英英释义
单词用法
阴极射线 | |
[电]冷阴极 |
同义词
反义词
| 阳极 | 阳极是电池中正极。 |
例句
1.As well as lithium-iron phosphate, other innovative materials have been used for the three main battery components of anode, cathode and electrolyte.
与锂-铁磷酸盐一样，其他新型材料已经用到了电池的三个主要部件，阳极、阴极和电解液。
2.XRD patterns showed that the cathode material is well-crystallized, homogeneous olivine-type phase, with only tiny trivalence iron impurities.
XRD 图谱表明，阴极材料结晶完整，为均一橄榄石型结构，仅含少量三价铁杂质。
3.It's a filament made from tin oxide anode and lithium cobalt oxide cathode suspended in an ionic liquid electrolyte.
它是丝状的，以锡的氧化物为正极，锂钴氧化物为负极，悬浮在离子电解液中。
4.We are going from bulky cathode-ray-tube screens to higher-functioning flat-panel displays, giving crews more situational awareness and more space.
我们将从笨重的阴极射线管屏幕转为高功能平板显示器，给予机组人员更高的态势感知和更多的空间。
5.A cathode ray tube can hold 300 volts of passive electrical storage, so use a hefty screwdriver across the main power supply capacitor, first.
任何阴极射线管都储存有三百伏电压，所以先要用一把强力螺丝起子来对付主电容器。
6.The ions and electrons met at the cathode, and combined with the oxygen to form lithium oxide that filled the pores in the carbon.
离子和电子在负极相遇，和氧气结合从而形成填入碳层的锂氧化物。
7.The Argonne patents that GM has licensed cover a cathode material that consists of lithium, nickel, manganese, and cobalt.
阿尔贡，通用汽车已授权涵盖了正极材料，包括锂，镍，锰，钴专利。
8.In electrolysis, the cathode 阴极 is where reduction occurs.
在电解过程中，阴极 是还原发生的地方。
9.The cathode 阴极 attracts cations during an electrochemical reaction.
在电化学反应中，阴极 吸引阳离子。
10.In a battery, the cathode 阴极 is the positive terminal during discharge.
在电池中，阴极 在放电时为正极。
11.In a vacuum tube, the cathode 阴极 emits electrons when heated.
在真空管中，阴极 发射电子 当被加热时。
12.The cathode 阴极 is typically made of a metal that can easily lose electrons.
通常，阴极 由容易失去电子的金属制成。
作文
In the realm of electronics and physics, the term cathode refers to the electrode through which electric current flows out of a polarized electrical device. This concept is crucial in understanding how various electronic devices operate, including batteries, diodes, and cathode ray tubes. The cathode plays a vital role in these systems, as it is responsible for the emission of electrons when a potential difference is applied. To illustrate the importance of the cathode, let’s consider the example of a simple battery. A battery consists of two electrodes: an anode and a cathode. When the battery is connected to a circuit, the chemical reactions occurring at the anode release electrons, which then flow towards the cathode. This flow of electrons constitutes electric current, enabling devices to function. Similarly, in a cathode ray tube (CRT), which was commonly used in older television sets and computer monitors, the cathode emits electrons that are directed towards a phosphorescent screen. The interaction between the electrons and the screen produces images by illuminating specific areas based on the electron beam's position. This technology, although largely replaced by modern LCD and LED screens, showcases the fundamental role of the cathode in generating visible displays. Moreover, in the field of electrochemistry, the cathode is equally significant. During electrolysis, the cathode is where reduction reactions occur, meaning that it is the site where ions gain electrons. For instance, in the electrolysis of water, hydrogen ions migrate towards the cathode, where they gain electrons and form hydrogen gas. Understanding this process is essential for applications such as water splitting for hydrogen production, which is gaining attention as a clean energy source. The implications of the cathode extend beyond just technical definitions; they also touch upon environmental and economic aspects. As we strive for more sustainable energy solutions, innovations involving cathodes in fuel cells and batteries are becoming increasingly important. For example, advancements in battery technologies, particularly lithium-ion batteries, rely heavily on the development of efficient cathodes that can enhance energy density and charge cycles. This directly impacts the viability of electric vehicles and renewable energy storage systems. In conclusion, the term cathode encompasses a wide range of applications and significance within the fields of electronics, physics, and chemistry. Its role in facilitating electron flow and participating in chemical reactions makes it a cornerstone of modern technology. By understanding the function and importance of the cathode, we can appreciate the intricate workings of the devices we rely on daily and the ongoing innovations that aim to improve our technological landscape. As we continue to explore new frontiers in science and engineering, the cathode will undoubtedly remain a key player in shaping our future.
在电子和物理学领域，术语cathode指的是电流从一个极化电气设备流出的电极。这个概念对于理解各种电子设备的工作原理至关重要，包括电池、二极管和阴极射线管。cathode在这些系统中扮演着重要角色，因为它负责在施加电位差时发射电子。为了说明cathode的重要性，让我们考虑一个简单电池的例子。电池由两个电极组成：阳极和cathode。当电池连接到电路时，发生在阳极的化学反应释放电子，这些电子随后流向cathode。电子的流动构成了电流，使设备能够正常工作。同样，在阴极射线管（CRT）中，这种管子曾广泛用于旧电视机和计算机显示器，cathode发射的电子被引导到荧光屏上。电子与屏幕之间的相互作用通过照亮特定区域来产生图像，具体取决于电子束的位置。这项技术虽然在现代LCD和LED屏幕中大多被取代，但展示了cathode在生成可视显示中的基本作用。此外，在电化学领域，cathode同样重要。在电解过程中，cathode是还原反应发生的地方，也就是说，它是离子获得电子的场所。例如，在水的电解中，氢离子向cathode迁移，在这里它们获得电子并形成氢气。理解这一过程对于水分解制氢等应用至关重要，这种方法作为清洁能源来源正在受到越来越多的关注。cathode的影响超越了技术定义；它们还涉及环境和经济方面。随着我们追求更可持续的能源解决方案，涉及燃料电池和电池的cathode创新变得越来越重要。例如，特别是锂离子电池的电池技术进步在很大程度上依赖于开发高效的cathodes，以提高能量密度和充电周期。这直接影响到电动车和可再生能源储存系统的可行性。总之，术语cathode涵盖了电子学、物理学和化学领域内广泛的应用和重要性。它在促进电子流动和参与化学反应中的作用使其成为现代技术的基石。通过理解cathode的功能和重要性，我们可以欣赏到我们日常依赖的设备的复杂工作原理，以及旨在改善我们技术环境的持续创新。随着我们继续探索科学和工程的新前沿，cathode无疑将继续成为塑造我们未来的关键角色。
