In terms of development trends, new energy is the future of automotive vehicle development. New energy automobiles including hybrid electric vehicle (HEV), pure electric vehicles (BEV), fuel cell vehicles (FCEV). Li-ion battery, motor and control system for energy conversion is the most important new energy automotive parts, and lithium batteries to achieve the fast charge, high-performance security is a technical threshold for the highest, most concentrated part of the profits. Currently hinder the development of lithium-ion batteries power the bottleneck is their safety performance and vehicle power battery management system.
Safety performance, as the lithium-ion power batteries with energy density, high temperature, poor working conditions and other reasons, coupled with the safety of people-oriented concept, so users of the safety of the battery of the very high requirements.
Battery automotive power management system, as the work of automotive battery voltage is 12V or 24V, and a single lithium-ion batteries power the operating voltage is 3.7V, it is necessary by a number of cells are connected in series to increase voltage, but difficult to achieve as a result of battery charge and discharge completely homogeneous, resulting in a number of batteries connected in series with a single battery charge and discharge will be an imbalance, the battery charge will appear the phenomenon of under-and over-discharge, and this situation will lead to rapid deterioration of battery performance, and ultimately result in the whole group of battery does not work, or even scrapped, thereby significantly affect battery life and reliability.
Therefore, the driving force for lithium-ion battery applications have to be very good technically, from materials, batteries, management systems, machining, etc. taking. Therefore, the need for co-operation of upstream and downstream enterprises to the battery as the core of the material, the request management system, etc., forming an industry group, is more conducive to technological advances and lower system cost.
The field of power batteries for electric vehicles is a big industry, the needs of the industry chain enterprises of all types of close cooperation between the upstream and downstream enterprises of the cooperation is a shortcut to obtain a multiplier can be integrated technology resources, and avoid vicious competition and technological development a waste of resources.
Enterprises such as the material is negative with the electrolyte material manufacturers manufacturers manufacturers and batteries, so that is negative electrode materials and electrolyte status to achieve the best match for batteries manufacturers to provide a total solution. Batteries should be from the technology manufacturers, ingredients, production optimization, thus producing a better overall performance of the lithium-ion battery power. Specific way: positive and negative materials to provide materials manufacturers batteries manufacturers to produce batteries not injection, and then to the electrolyte to the electrolyte Matching manufacturers to produce batteries battery manufacturers after the settlement and detection of positive and negative materials manufacturers regularly Co-technical exchange meetings held to resolve the matching problem, will greatly accelerate the overall development of the industry.