primary cell

简明释义

原电池

英英释义

例句

1.The drug's effectiveness was tested on primary cells derived from human skin.

该药物的有效性是在从人类皮肤衍生的原代细胞上进行测试的。

2.In regenerative medicine, primary cells are crucial for developing new therapies.

在再生医学中，原代细胞对开发新疗法至关重要。

3.The research team isolated a primary cell line from the patient's tissue sample.

研究小组从患者的组织样本中分离出一条原代细胞系。

4.Using primary cells instead of immortalized cell lines can yield more accurate results.

使用原代细胞而不是不朽细胞系可以获得更准确的结果。

5.The scientist used a primary cell to study cellular behavior in a controlled environment.

科学家使用了一个原代细胞来研究细胞在控制环境中的行为。

作文

In the world of electrochemistry, understanding the concept of a primary cell is essential for both students and professionals alike. A primary cell is a type of electrochemical cell that generates electrical energy through chemical reactions and is designed for single use. Unlike rechargeable batteries, which can be recharged and reused multiple times, a primary cell is meant to be disposed of after its chemical reactants are exhausted. This characteristic makes it particularly useful in applications where long-term power supply is not necessary, such as in remote controls, flashlights, and various portable electronic devices.The basic structure of a primary cell typically includes two electrodes: an anode and a cathode, separated by an electrolyte. The anode is the negative electrode where oxidation occurs, releasing electrons that flow through an external circuit to the cathode, the positive electrode where reduction takes place. The chemical reactions that occur at these electrodes are what generate the electrical energy, and once the reactants are depleted, the cell can no longer produce electricity.One of the most common examples of a primary cell is the alkaline battery. Alkaline batteries are widely used due to their relatively high energy density and long shelf life. They contain zinc and manganese dioxide as the anode and cathode materials, respectively, and potassium hydroxide serves as the electrolyte. The combination of these materials allows for efficient energy production, making alkaline batteries a popular choice for everyday devices.Another example of a primary cell is the zinc-carbon battery, which has been around for over a century. While it is generally less efficient than alkaline batteries, it is often cheaper and can still provide adequate power for low-drain devices. The zinc-carbon battery consists of a zinc anode, a carbon cathode, and an acidic electrolyte. Despite being phased out in favor of more efficient alternatives, zinc-carbon batteries are still found in many households due to their affordability and availability.Despite their convenience, primary cells also come with environmental concerns. Since they are not rechargeable, they contribute to waste when discarded. Many regions have implemented recycling programs to mitigate the environmental impact of primary cells, encouraging consumers to return used batteries for proper disposal and recycling. This is crucial because batteries can contain harmful chemicals that, if disposed of improperly, can leach into the environment and pose risks to both human health and wildlife.In conclusion, a primary cell plays a significant role in our daily lives, powering countless devices we rely on. Understanding how these cells work, their applications, and their environmental impact is essential for making informed choices about energy consumption and disposal. As technology continues to evolve, researchers are exploring new materials and designs to improve the efficiency and sustainability of primary cells. By staying informed about these advancements, we can contribute to a more sustainable future while enjoying the convenience that modern technology offers.

在电化学的世界中，理解“primary cell”这一概念对学生和专业人士来说都是至关重要的。“primary cell”是一种通过化学反应产生电能的电化学电池，旨在单次使用。与可充电电池不同，可充电电池可以多次充电和重复使用，而“primary cell”则在其化学反应物耗尽后被丢弃。这一特性使其在不需要长期电源供应的应用中尤为有用，例如遥控器、手电筒和各种便携式电子设备。“primary cell”的基本结构通常包括两个电极：阳极和阴极，之间由电解质分隔。阳极是负电极，发生氧化反应，释放电子，这些电子通过外部电路流向阴极，即正电极，在阴极上发生还原反应。发生在这些电极上的化学反应产生电能，一旦反应物耗尽，电池就无法再产生电力。最常见的“primary cell”之一是碱性电池。由于其相对较高的能量密度和较长的保质期，碱性电池被广泛使用。它们的阳极和阴极材料分别是锌和二氧化锰，氢氧化钾作为电解质。这些材料的组合允许高效的能量生产，使碱性电池成为日常设备的热门选择。另一个“primary cell”的例子是锌碳电池，这种电池已经存在了一个多世纪。虽然它通常效率较低，但价格较便宜，仍然可以为低耗电设备提供足够的电力。锌碳电池由锌阳极、碳阴极和酸性电解质组成。尽管由于更高效的替代品而逐渐被淘汰，但锌碳电池由于其经济性和可获得性，仍在许多家庭中找到。尽管方便，但“primary cells”也带来了环境问题。由于它们不可充电，废弃时会增加垃圾。许多地区实施了回收计划，以减轻“primary cells”对环境的影响，鼓励消费者将使用过的电池归还以便妥善处理和回收。这一点至关重要，因为电池可能含有有害化学物质，如果处理不当，会渗入环境，对人类健康和野生动物构成风险。总之，“primary cell”在我们的日常生活中发挥着重要作用，为我们依赖的无数设备提供电力。理解这些电池的工作原理、应用及其环境影响，对于做出明智的能源消费和处置选择至关重要。随着技术的不断发展，研究人员正在探索新材料和设计，以提高“primary cells”的效率和可持续性。通过了解这些进展，我们可以在享受现代技术带来的便利的同时，为实现更可持续的未来贡献力量。