The battery has become an essential part of human life.Since the 1970 s, the first piece of the development of lithium ion battery (LIB), and SONY in 1991 to promote the first rechargeable products since listing, the world are used to the convenience of portable power supply - because the equipment for mobile phones and other daily use more and more.
In global efforts to purification of the natural environment, also plays an important role in lithium-ion batteries.As countries around the world to use clean energy instead of fossil fuels, for example, powered by lithium-ion batteries of electric cars usage will increase.
Lithium mine is full of challenges, however, is not without environmental consequences.2016 t rhonda lithium gas leak fully proves this point: dead fish in the river floating in litchi is the proof of local ecological system was damaged.
Therefore, battery research and development is very necessary.People need to develop new technology, the use of more common and more environmental protection, low toxic materials to make batteries.But also need to strike a balance: if the density of new battery is low or more expensive materials used, it will be in vain, because of their overall impact on the environment may be negative.
To achieve these goals, and developed to overcome the current lithium ion battery limit for the next generation of energy technology, its core is the need for a deeper understanding of the researchers have basic chemical properties of materials, as well as the key reaction in lithium ion batteries.
Brooke's long experience and a range of techniques, including nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR) and magnetic resonance imaging (MRI), etc., help the researchers to achieve these goals.
Although the electron microscope and optical microscope technology provides high resolution imaging, but they are usually limited to surface imaging, and it is difficult to quantitatively interpret.Nuclear magnetic resonance and electron paramagnetic resonance spectrum are non-invasive methods, capable of quantitative research are also continue to improve the sensitivity and resolution.In addition, the related powerful imaging techniques such as nuclear magnetic resonance (NMR) imaging techniques are being used to the new technical analysis paradigm.
At present, people are working on and review a series of strategy, in order to break through the current performance of lithium ion battery limit.At the same time, the more radical alternative studies are also accelerating.Solid-state batteries is a good example of the new method.
Solid-state batteries will represent a major change in battery technology.This concept is not new, but in the past 10 years, people have developed a new series of solid electrolyte, they are different from liquid electrolyte, non-flammable during heating, therefore has significant improvement in security.In addition, solid-state batteries allows the use of innovative materials of high voltage, high capacity, which could help to overcome the performance problems.The resulting cells could provide significantly higher energy density and improve the battery life.
As research scientists are trying to balance our future portable energy demand and reduce the impact on the environment, they will increasingly rely on the use of nuclear magnetic resonance and electron paramagnetic resonance and magnetic resonance imaging technology is analyzed.