The new crystal material or increase the battery life

Recently some scholars in the world and international organizations to think: the large capacity and high parameter unit power, ultra-high voltage, long-distance transmission of interconnected power grid centralized power supply is in the past, the path of some industrial developed countries. The situation is changing, the emergence of a decentralized power station, and to improve the energy investment choice, traditional ideas become out of date. Founded in 1999 in Brussels international cogeneration ( ICA） Organization says: actually purport is the world within the scope of the clean, efficient and decentralized electric power production, it is predicted that the next century the direction of the electric power industry. As scattered small thermal power plant, solar fuel cell power generation, wind power, solar power, biomass power generation and increase, the power system will be a big change. The combination of very large power station with dispersed micro can reduce the investment on the transmission and distribution lines, makes the power system is more safe and more economic. A currently has 50 power plant electric power company in the next several years there will be thousands or even tens of thousands of tiny power station connected with them. This kind of power network is similar to the current computer network, a few a few hosts connected to many PCS. The grid to make better use of all kinds of energy and configuration, this change will require power system operation mode of the future have a significant change.

a few days ago, at university college London and the university of Chicago researchers have found that magnesium chromium oxide particles may be the key to the development of a new type of magnesium battery, the battery will be stronger than traditional lithium-ion batteries have the storage capacity of the battery. The study, published in the British royal society journal journal of nanometer scale.

it is known that the study is published to a whole new approach to manufacture the new material, the material can be reversibly storing highly active magnesium ions. The research team said, which means that they are an important step to magnesium battery. So far, only a handful of inorganic materials showed reversible magnesium ion absorption and eliminate ability, it is of vital importance for magnesium battery.

the joint head, of university college London, said Dr IanJohnson & other; Lithium ion technology is close to its ability to the limit, so for us to find other chemicals to create the battery capacity is larger and the design more simple is very important. Magnesium battery technology has always been considered likely to be extended mobile phones and electric vehicle battery life solution, but the selection of cathode materials has always been a challenge. ”

the limiting factor of lithium ion battery is its anode. For security reasons, the low capacity must be used in lithium ion battery carbon rod, because pure lithium anode can trigger a dangerous short circuit or even fire. Magnesium as anode, by contrast, more safety, so the cathode material and magnesium collocation makes a smaller but more storage capacity battery.

before the study used a computer model for the prediction of the magnesium chrome oxide ( MgCr2O4) Is the ideal candidate for the magnesium battery cathode materials. Inspired by it, researchers at university college London, through a rapid reaction at low temperature to obtain a five nanometres wide disorderly magnesium chromium oxide. Researchers at the university of Illinois will this material with normal seven nanometers wide orderly magnesite chrome oxide compared the activity of magnesium.

they use a range of different detection of two kinds of material structure and chemical changes in activity test. These two kinds of crystal material performance is completely different. Professor at university college London JawwadDarr explained, & other; This suggests that the battery may be in the future will depend on the disorder of unconventional structure. The importance of this research is that it can help us to understand the other structural defects of material is it possible application in the reversible battery storage technology. ”

in the future, the team plans to their research are generalized to other disordered structure material, in order to determine the future can realize the ascension of storage capacity and developed a practical magnesium battery.