Posts

Showing posts with the label lithium battery

No longer blew! Prevent Lithium Battery Explosion Method!

Image
( 48V) Lithium batteries  are flammable devices, mobile phones, scooters and other built-in lithium device, if used improperly, there is always the time of explosion. We have reproduced in movie, show scooter lithium blast. Do lithium produced in the manufacturing process itself is also a problem can not be ignored, because the manufacturing process was defective, it is easy to leave fragments of metal dust, copper and aluminum foil between the positive and negative should be insulated from these scrap battery overheated, will be like the dumplings in boiling water to do the same random thermal motion in the electrolyte, if prolonged exercise, these particles happen to be close to the  lifepo4  battery  positive and negative poles in the middle of the diaphragm can easily cause a short circuit inside, and inside the battery the electrolyte is a flammable liquid, a spark caused by a short circuit in a confined environment can easily lead to electrolyte battery ignition internal comb

Do you know the real reason for the lithium battery performance degradation it?

Image
Li-ion battery has now been widely used in mobile devices, but the battery life is not long, 500 charging cycles will lose about 1/5 of capacity.   In order to study the reasons for the lithium battery degradation, the US Pacific Northwest National Laboratory scientist using a powerful microscope to observe the success of the real-time status of the lithium battery charge and discharge. The researchers found that when using the battery creates pressure and cause rupture electrode.   In addition, for each charge and discharge cycle will leave traces of lithium electrode in addition to these "death" of lithium which can no longer play a role in the future of charging, and will cause a decline in battery capacity.   The researchers also observed in the solid electrolyte interphase layer is formed on the electrode surface, which can "clog" the battery and affect its ability to charge. Lithium who want to solve these problems, the use of alternative methods is o

Battery Tests Show Some Lithium-Ion Cells Last Over 5x Longer

Image
Researcher Andreas Gutsch from the Karlsruhe Institute of Technology said at the PV Symposium in Germany recently that some lithium-ion cell s working in storage systems experienced up to 30% capacity loss after 1,000 cycles, while some cells have a better capacity after 5,000 cycles. In other words, there can be quite a lot of variation in lithium-ion cell performance. lithiumionbatteryger Testing conditions did not allow him to reveal the names of cell manufacturers. The cells were not easy to obtain for testing and he could not disclose that specific information. However, his test results did reveal that cells from China that were tested had the performance that decreased most rapidly. Cells from Japan and Germany did the best, while ones from South Korea and the US were in the middle of the performance range. One battery type that was specifically mentioned was the Tesla battery. This battery was found to last 400 cycles and was indicated to have the ability to power a car for a

About the past era of lithium aluminum battery age will come up?

Image
Chinese American scientists have developed a high-performance aluminum battery's first commercial application, its charge faster, last longer and very cheap, just one minute using this smart phone battery is fully charged. The new battery can replace the widely used but there is still insufficient lithium ion batteries and alkaline batteries. Research published in the April 6 issue of "Nature" magazine online edition. Because aluminum battery has a low cost, easy to burn and do not have a high charge storage capacity, etc., for decades researchers have attempted to develop an economically viable to aluminum ion batteries, but has not been successful, where the key challenge is to find the right positive materials and electrolyte materials, so that the aluminum battery is constantly charging and discharging cycles can still produce an effective voltage. The study's lead author, professor of chemistry at Stanford University Dai said: "People try a variety of cath

Power lithium battery high demand in 2014 will meet the explosive growth of the future

Image
ufo battery offical site 2014, the number of new cars in the global energy yield sales USA, China, Japan, the European Union and other countries and regions, led by more than 300,000, only China's new energy vehicle production in 2014 reached 83,900. The rapid development of new energy automotive industry, so that the global growth in demand for lithium battery power significantly. According to statistics, in 2014 the world's lithium-ion battery shipments reached 10012.8MWH. Recalling 2014, AESC, BYD and LG lithium battery shipments over 1GWH, to become the world's top three manufacturers of lithium battery. In 2014, about 800MWH Panasonic lithium battery shipments, SDI, LEJ, Hefei, China Xuan and other enterprises Air lithium lithium battery shipments ranking. AESC batteries which are mainly supplied to the Nissan LEAF and the Renault Kangoo ZE, 24AH batteries using NCM ternary system; LG major supplier to the Chevrolet Volt, Renault ZOE, Volv

LG Chem will provide the lithium battery cell Daimler Smart EV

Image
K-car News LG Chem has released an official statement saying that Daimler has selected the company as a supplier of lithium batteries , will provide Smart EV battery, which models will be launched in 2016. LG Chem will provide Daimler cell, battery pack assembly by Daimler. Last August, LG Chemical also received orders for Audi's battery, which provides support for plug-in hybrid vehicle lineup. The company also noted that the future is expected to get more orders from Audi's parent company Volkswagen Group. In the field of automotive batteries, LG Chemical has gained 20 customers, including General Motors; the company's goal is to overall sales in 2018 will increase to a large battery of 10 trillion won (US $ 9.8 billion) or more.

The new lithium battery electrolyte substantially increase the efficiency and service life

Image
US Department of Energy scientists at Pacific Northwest National Laboratory have developed a new type of electrolyte, lithium-ion batteries can not only solve the problem of short circuit fire, but also a substantial increase in battery performance and life. The researchers said the discovery could lead to the next generation of more powerful and practical rechargeable batteries, such as lithium sulfur and lithium-air and lithium metal batteries. US Department of Energy scientists at Pacific Northwest National Laboratory have developed a new type of electrolyte, lithium-ion batteries can not only solve the problem of short circuit fire, but also a substantial increase in battery performance and life. The researchers said the discovery could lead to the next generation of more powerful and practical rechargeable batteries, such as lithium sulfur and lithium-air and lithium metal batteries. Most rechargeable batteries are lithium ion batteries, lithium or other anode materials, cath

Mapping Mechanical Properties of Lithium/Polymer Battery Composites with Nanoindentation

Image
Introduction The primary purpose of the work presented herein is to investigate the mechanical properties of a lithium rechargeable battery cathode 1-3 by utilizing both the classic XP CSM and newer, ultrafast DCM Express Test methods with a Nano Indenter G200 (Keysight Technologies) . Scanning electron microscopy analysis is used as a support to understand the obtained results and gain information about the differences between the two adopted nanoindentation methods. Particular attention is focused on the analysis of the mechanical and elastic properties of new-generation lithium/polymer electrodes, with the final aim of correlating the life cycle and the number of charge and discharge cycles with the mechanical properties of the electrodes. By employing an improved grid nanoindentation method 4-6 , it is possible to perform a statistical deconvolution of the mechanical properties and to understand how many (and which) heterogeneous material phases there are as well as how they i

Li(NiCoMn)O2 lithium Era, Chinese Enterprises How to do?

According to a survey in 2014 showed that the development path from the electric energy, the hybrid is not around the last stage in the more distant future, electric cars can become mainstream route, the most critical is to see mileage can follow up. To enhance the pure electric car Mileage solve mileage anxiety, there are many ways, such as the vehicle's weight, more intelligent battery management system, but the most fundamental, or in the battery itself. January 24, in the new global energy vehicles on the General Assembly in Tianjin to have a battery-themed salon. From the 18th Research Institute of China Electronics Technology Group Corporation, Henan lithium-moving power, Tianjin Lishen, Celgard (products for battery separators) and Boston battery power battery guests to development and technology options were discussed, and in this Sharon reflected in the pieces of information is very interesting. Rise of Li ( NiCoMn ) O2 lithium battery "Given the choice of lit

How to deal with used batteries?

Image
Battery is one of the most commonly used in daily life goods , cell phones , cameras , alarm clock, doorbell , remote control , etc., are inseparable from the battery. " My family kept a festival than a dozen used batteries , fearing random throw will pollute the environment, but can not find collection points , how to do it ? " Recently, who lives in the village of happiness Sun told reporters , do not know how to properly handle home used batteries . Waste battery recycling bins Hard to Find "You see, so many used batteries , how to do it ? Threw fear pollution of the environment , do not throw it and do not know how to deal with , is really a problem ." Speaking of the Sun a feeling annoyed . According to Mr. Sun introduced a lot of used batteries at home , mainly from children's toys , remote control, razors and other battery models are on the 1st , 5th , 7th . Considering the used batterie

The Basic Composition of Lithium-ion Battery and Main Materials

Image
The basic composition of lithium-ion battery and main material, lithium -ion battery is a chemical power . ① two electrodes cell redox reaction in progress , respectively, must be carried out in two separate areas , which is different from general oxidation-reduction reaction . ② When two electrode active material undergo a redox reaction , the desired electron must be transferred from an external circuit , which is different from the micro- cell reaction corrosion process . In order to meet the above conditions , no matter what the battery series , shape , size , by the following components : an electrode ( active material), electrolyte, separator , binder , a housing; in addition to positive and negative electrode lead , the center terminals , insulating material , the safety valve , PTC ( positive temperature control terminal ) and the like are also an integral part of the lithium ion battery . The following briefly describes the