Lithium batteries with lithium as cathode

Now everyone likes to use smartphones and tablets, so do people who like to use these smartphones find that they consume electricity fast? Presumably everyone has the feeling that the power consumption is too fast, and the equipment has to continue charging before long, which is a little inconvenient. The reason is that the battery has too little storage capacity. But now according to foreign media reports, scientists in the United States have invented a pure lithium battery, which greatly prolongs the use of electronic devices such as mobile phones, with an average of four times the original time. This is a major breakthrough.

The newly invented pure lithium batteries have greatly increased the storage capacity, which greatly prolongs the use time of electronic equipment, thus eliminating the need to charge the battery once in a few hours. With the increase of storage capacity, the size of the battery, i.e. the volume, has not increased, which will not cause other problems, invented by Stanford scientists. The lithium batteries we use today only have lithium in the electrolyte, and the cathode has no lithium, using other materials. Scientists at Stanford University now use lithium as a cathode because it has many advantages, not only being convenient and compact, but also increasing the effectiveness of batteries.

There are many advantages in making positive poles from lithium, but there are also a series of problems. During charging, lithium ions expand when they meet the cathode. Graphite and silicon, which are now used to make the cathode, also expand, but not so seriously. The consequence of expansion is short circuit or shortened life. The chemical reaction between lithium cathode and electrolyte can also shorten the life of the battery. Moreover, it is easy to heat between the two, which can not guarantee the safety of the battery. New pure lithium batteries invented by American scientists will solve these problems.

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