That electrode, the one that wants the electrons more is called the cathode, and the one that gives up electrons is called the anode.

那个电极，也就是那个更加需要电子的电极被称为负极，而那个失去电子的电极被称为极。

Electrical currents are measured in frequencies-the number of times a wave repeats a positive-to-negative cycle.

电流用频率测量——电极到负极循环的次数。

The cathode acts as the battery's positive side, while the anode is the negative side.

极是电池的阳极，而负极是电池的阴极。

In the course of normal use, lithium ions shuttle energy between the cathode and anode.

在常使用过程中，锂子在极负极之间传递能量。

That process started by depolarizing the cell — that is, pushing the cell's membrane potential from negative toward positive, past a threshold that triggered voltage-gated ion channels to open.

这个过程是细胞去极化开始的——也就是说，将细胞膜电位负极推高到极，超过了触发电压子通道打开的阈值。

The electrons travel through, say, a light bulb, and then return to the battery at the positive terminal, where they're accepted by manganese dioxide.

电子穿过灯泡之类的用电器，然后回到电池极，被二氧化锰接收。

Lead I uses the Right Arm as the negative pole and Left Arm as the positive pole, forming a vector that goes to the right.

I导联将右臂作为负极，左臂作为极，形成一个指向右侧（左臂）的向量。

If we look at the sodium we're going to have the negative parts of the water attracted to the positive parts of the sodium.

如果我们观察钠, 就会发现水的负极部分被钠的极部分所吸引。

Both the cathode and anode can store lithium.

极负极都可以储存锂。

Lithium-ion batteries consist of four components: a cathode, an anode, a separator, and an electrolyte containing lithium ions.

锂子电池由四个主要部分组成：极、负极、隔膜含有锂子的电解液。

Once all the electrons have reached the positive electrode, the battery is considered discharged, meaning it's out of power.

一旦所有的电子都流向极，电池则放电完毕，电量耗尽。

This means the lithium ions travel from the cathode back to the anode.

这意味着锂子极回到负极。

The two main parts of a battery are the cathode and anode, the U.S. Department of Energy's Argonne National Laboratory explains.

电池的两个主要部分是极负极，美国能源部的阿贡国家实验室解释说。

And so we're going to have the positive ends of the water attracted to the negative ends of the ion.

这样我们就要让水的极被子的负极吸引。

And a positive side where the hydrogen is.

极上有氢。

And so there's two different poles, a negative and a positive pole here.

这里有两个不同的极，一个负极一个极。

And like, cause there's, you know, there's negative and positive magnets that attract, right?

就像，因为你知道，有负极极的磁铁会相互吸引，对吧？

Different chemical reactions occur at the battery's positive and negative electrodes.

电池的极负极会发生不同的化学反应。

So, among other things, battery cells contain a cathode, an anode, and an electrolyte.

总之，电池细胞包含极、负极电解质。

But in 1886, German physicist Eugen Goldstein found that the tubes also emitted light from the positive electrode, basically, a ray headed in the opposite direction, which meant that there must also be a positive charge in matter.

但在 1886 年， 德国物理学家 Eugen Goldstein 发现， 这些管子也极发出光，基本上是一条相反方向的光线， 这意味着物质中一定也有电荷。