Miao Sheng power: innovative operation and maintenance mode escort power battery security
Publish：Sino Energy Corporation Time：2017-04-26
As a new energy automobile market application core concerns, battery life and safety in the industry concerned, around this, battery enterprises, automobile companies, operators are actively exploring in technology development, technology innovation, manufacturing, operation and maintenance etc..
"In 2017, our goal is very clear, under the premise of ensuring the energy density and the capacity not left behind, will continue to use battery life and safety as the focus, focus on the deployment of technology leading" line maintenance, "new operation mode of the line."
In 2017 the "lithium supply chain product research activities in the national tour", Miao Sheng Power Technology Co Ltd (hereinafter referred to as the "Miao Sheng power") general manager Yang Jinlin to lithium Engineering said, it is through online and offline operation, BIS system, portable charging to enhance power battery safety and life.
It is reported that Miaosheng power is a whole series of lithium battery manufacturers, Hunan province is the largest new energy automotive lithium-ion battery manufacturing enterprises, the group owns Changsha high tech Zone, Ningxiang Economic Development Zone, Shenyang, Shenbei New Area and other three large power battery industry base.
The mass production of three yuan soft cell energy ratio is above 200wh/kg, the lightweight optimization system than energy is 115-125wh/kg, the monomer energy density reached 228Wh/kg products have entered the small batch stage, also is the development of more high energy density batteries. At present, the company is also expanding production capacity of power batteries, plans to form a 12GWh capacity in 2020.
On line maintenance
"The industry has been the focus of the battery safe in the material, single electric core equipment precision and how to control the production process in order to achieve better consistency of monomer batteries, but in fact the battery safety problem is very wide, and the car battery matching, connection status, under different conditions such as the use of should cover the entire process chain should be focused on security issues. From this point of view, while focusing on the consistency of the core, we through technical innovation, the implementation of the battery system package ‘online use, offline maintenance‘ innovative operation and maintenance mode." Yang Jinlin said.
Miao Sheng power statistics 2015 electric vehicle accident data found that the real case of electric fire caused by the accident accounted for about 8%. Pack structure design, battery connection, the external environment temperature changes caused by overcharge, over discharge problems are also behind the accident can not be ignored". "It turns out that electric cars and fuel vehicles must be maintained and maintained in depth. The battery life will be further improved, security can also be improved accordingly." Yang Jinlin supplement.
At present, the market of the BMS system is responsible for intelligent management, maintenance of various cell units, to extend the battery life, monitoring the state of the battery, but in Yang Jinlin view, its actual performance is not stable. "The current BMS system play a limited role, mainly" monitoring "function, to achieve" battery management ", according to the change of the index of the battery, to adjust or directly adjust the battery status, there is no dazzling performance. This is one of the reasons we first proposed a new mode of operation and maintenance."
Research and development of lithium ion battery immune system (BIS system)
Miao Sheng power new business model is an important step in the development of lithium-ion battery immune system (BIS system). Miao Sheng power chairman Qiu Zeyou in order to "global vision and Chinese strategy: to introduce a new trend of" new thinking and new pattern as the theme of the 2016 electric vehicles and lithium Engineering Conference, BIS system through the use of the lithium ion battery in the battery pack, can solve flatulence, cold injury, fire or explosion problem in the world.
Miao Sheng power relevant responsible person also said that the BIS system on the basis of customer demand, product design, development, testing, combined with the advanced technology, polymer battery sealing nano material coating, double protection module, battery management system BMS advanced technology, to achieve a good safety, reliability, consistency, high temperature and low temperature performance of lithium polymer battery technology innovation.
The system with constant temperature technology, ensure the battery pack temperature does not vary with the outside temperature changes, realize the single battery internal temperature is the same, including between the single battery and the surface temperature of the battery, the battery pack temperature, constant temperature in any position. At the same time, the single cell can realize the temperature adjustment in the range of 20 DEG C -40 DEG C, the deviation is less than or equal to the degree of 3, and the external environment temperature can be guaranteed to work in the range of -40 DEG C to 65 DEG C.
The internal battery element and stable electrode structure, can make the battery charging pressure in long time under the characters remain unchanged, Miao Sheng said, this technology allows the lithium battery life up to 10 years, cycling more than 10000 times, 5 times the current market generally lithium battery life.
Development of portable charging technology
At the same time, Miao Sheng active layout of new energy projects, improve the support of the new operation and maintenance mode. Yang Jinlin said Miao Sheng power has been adhering to the energy station + electricity for the standard module for electricity mode layout market, has invested a lot of energy research and development.
At present, photovoltaic power generation, the need to store the energy stored in the battery or directly into the grid, and then provided by the grid to the electric vehicle charging, the process will inevitably cause a certain amount of energy loss. However, if the battery can be fully used as an energy carrier, it is possible to achieve a clean energy storage and electric vehicle power supply effective convergence, which is also a good momentum of the market trend." Yang Jinlin said.
From the positioning point of view for power mode is more and more attention, the battery is connected with the energy carrier, technology infrastructure and energy in the Internet on the implementation of centralized charging for electric battery, distributed, modular design of miniaturization, to achieve a key transmission possible door-to-door service is the ultimate goal of Miaosheng power.
Currently Miao Sheng has been working with manufacturers and local industries to expand cooperation." Exchanges, Yang Jinlin also frankly, the difficulty is also the actual existence of quality problems bear the brunt, while research and development, investment and construction costs and consumer confidence is still facing challenges."
