Germany 4 enterprises jointly developed a bipolar battery technology can provide electric cruising range, which is 1000 km long

Battery technology has been a bottleneck restricting the development of new energy vehicles one of the important reasons. How to make a breakthrough in battery technology, so as to improve the range of electric vehicles is auto makers face major challenges.

according to foreign media reports, Germany's thyssenkrupp and Daimler are developing based on lithium-ion technology such as electric cars a bipolar battery, battery can make such optimization of electric cars maximum range of 1000 kilometers, effectively solve the shortage problem of the current lithium battery life.

the technology involved in the enterprise is a subsidiary of thyssenkrupp thyssenkrupp auto systems engineering company, Daimler ag, Germany IAV company and fraunhofer institute for ceramic technologies and systems, called EMBATT - the battery project 就- - - FAB, aims to research and development directly integrated large planar lithium ion battery in the vehicle chassis, the bipolar battery electric vehicle ( 双电池) 。

by studying the scale manufacture technology, giving impetus to industrialized operation of bipolar cells, increase the range of electric vehicles, the project can provide a more solid foundation for the development of electric vehicles.

this project at the same time also with the German federal economic and the department of energy ( 联邦经济事务部和能源) The sponsorship and support. Similar to the fuel cell, bipolar battery electrodes are connected by a series of stack. However, the traditional bipolar battery and lithium ion battery of the difference is that the electrodes are bipolar, namely battery cathode and anode active material is applied to a public electrode on the carrier.

in addition, the packing of the bipolar battery core is different with traditional lithium-ion batteries, the single lithium ion battery will no longer be wrapped separately in the aluminum shell, but the stack with each other in a large area. Its unique stack structure parts and eliminating the shell connected components, the release of space available to fill more active material, help battery store more energy, extend the range of electric cars at the same time, also save the cost of electric vehicles.

in this project, the cooperation of enterprises will be combined with their own professional field, the technical challenge: thyssenkrupp auto systems engineering company is responsible for the extension assembly technique, fraunhofer institute for ceramic technologies and systems for lithium - nickel - cobalt oxide and manganese - graphite as storage materials improve the bipolar electrode production, IAV company responsible for battery monitoring system, Daimler ag, responsible for the security simulation of a bipolar battery.

it is learnt that the project will be completed in the first stage, the bipolar battery quantitative production began. The bipolar battery application and project use light, not only suitable for electric vehicles, but also can be used as a distributed storage system in the solar system.