通过不断把带正电荷的钾离子和钠离子压出电池，电池内负电荷数量就会增加。
By pumping positively charged potassium and sodium ions out of the cell, the number of negatively charged ions inside the cells rises.
燃料电池像电池一样，有正、负电极，两极之间是电解液。
Like a battery, they use positive and negative electrodes separated by an electrolyte.
每个电池元都包括一个正电极和一个负电极，两个电极用一个浸在导电电解液中的隔离器隔开，该电解液允许离子而不是电子在两个电极之间来回传输(译者注：具体参见下面那个电池结构图)。
Each cell consists of a negative electrode and a positive electrode kept apart by a separator soaked in a conductive electrolyte that allows ions, but not electrons, to travel between them.
该电池包括有全部容置于该容器内的正电极、负电极和水碱性电解液。
The cell has a positive electrode, a negative, and an aqueous alkaline electrolyte, all disposed in the container.
小盒子的顶部和底部分别连接一个电池，让一边成为正电板，另一边成为负电板。
At the top and bottom were metal plates hooked to a battery, making one positive and the other negative.
然后给电池的正负电极施加电压。
用于锂二次电池的负极活性物质，其制备方法，包括它的负电极和包括它的锂二次电池。
Negative active material for lithium secondary battery, method for preparing the same, negative electrode comprising the same, and lithium secondary battery comprising same.
组成电池两级的物质的正负电荷差越大，他们发生化学反应时产生的电伏数越大。
The bigger the difference in the electropositivity and electronegativity of the materials that make up a battery's electrodes, the bigger the voltage it can deliver.
你可能有所不知，你车的底盘其实连接着电池的负极，所以，你的车其实是带负电荷的。
You may not be aware of this but the chassis of your vehicle is actually connected to the negative terminal of your battery. So your car is actually negatively charged.
回想先前的部分，锂离子电池包含一个使正负电极分离开来的薄板。
Recall from the previous section that lithium-ion cells contain aseparator sheet that keeps the positive and negative electrodes apart.
通过在带正电荷的Co3O 4周围包裹一大层带负电荷的石墨烯，可以为高性能锂离子电池制备出一个非常有效率的阳极。
Wrapping a large sheet of negatively charged df-G around a positively charged Co3O4creates a very promising anode for high-performance Li-ion batteries.
第一软金属层和第二软金属层是对应镀在干电池的正电极的触点上及负电极的触点上。
The first soft metal layer and the second soft metal layer are correspondingly plated on the contacts of the positive pole and the negative pole of the dry battery.
第一软金属层和第二软金属层是对应镀在干电池的正电极的触点上及负电极的触点上。
The first soft metal layer and the second soft metal layer are correspondingly plated on the contacts of the positive pole and the negative pole of the dry battery.
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