According to foreign media reports, the degradation of the energy storage capacity of rechargeable batteries is a serious problem that many users have to endure in daily use. Now researchers from Harvard University have developed a new battery technology that uses a chemical "magic" to create a rechargeable battery that can last for more than a decade without much needed maintenance. The technology used in the new battery technology is called a "fluid battery," which draws current through the exchange of two liquids. Although this battery makes the system more flexible and more durable, it is prone to degradation, which means it needs regular maintenance.
In response, Harvard researchers found a solution, they made the electrolyte in the battery structure has been adjusted to successfully make them have a water-soluble ability. In other words, they can use neutral water to get the current, not the corrosive or toxic liquid, which means the technology is not only safer to use but also has lower maintenance cost.
More importantly, this battery is also very durable. According to the team, after they had fully charged the battery 1000 times, the energy storage capacity of the battery was only lost by 1 percentage point. This value is very, very low compared to most lithium-ion batteries.
It is understood that this new battery technology developed by Harvard University will not only apply to small devices such as mobile devices, it can also be applied to large-scale energy storage systems such as solar panels in the future.
The Cylinder Liner is a cylindrical part that is placed in the cylinder block hole of the body and is secured by the cylinder head. The piston reciprocates in its inner hole and is cooled by cooling water outside.
4. The cylinder liner of a two-stroke diesel engine is arranged with an air port, which is opened and closed by a piston to realize gas distribution.
There are several types of cylinder liner structure:
The inner surface of the cylinder is easy to wear due to the action of high temperature and high pressure gas and the contact with the high-speed moving piston. In order to improve the wear resistance of cylinder and prolong the service life of cylinder, there are different cylinder structure forms and surface treatment methods. There are three types of cylinder structure: no cylinder liner type, dry cylinder liner type, wet gas cylinder liner type.
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