Metal Impurities will affect the self-discharge of the battery. Metal impurities will spontaneously react with the original battery inside the battery, causing self-discharge. At the same time, the higher the metal impurities are, the worse the safety performance of the product is, metal Impurities will pierce the membrane of lithium ion battery and cause short circuit of the battery. Power battery has extremely strict requirements on this index. Generally, it is required to be controlled below 100ppm, while domestic carbon nanotube metal impurities are generally controlled above 200ppm, whisker carbon nanotubes can be controlled above 100ppm, and the product is better.
High capacity lithium ion battery is the negative electrode material of lithium ion battery, which requires high capacity. At present, silicon carbon negative electrode material is generally used, and silicon carbon negative electrode will generally expand to a large extent when used, resulting in poor cycle performance of the battery, taking advantage of the length advantage of whisker carbon nanotubes, the conductive network can still be maintained when the silicon carbon negative electrode material expands, and the cycle performance of the battery is improved. At present, KELAIWEI is cooperating with X company in developing the negative capacity to increase the capacity and circulation performance of the negative.
KELAIWEI nano carbon material company has strong financial strength and technical team R & D strength KELAIWEI Jiangxi company and Henan company have applied for more than 100 patent technologies our company formulates the company's technological process and manufacturing and processing equipment by virtue of independent intellectual property rights, the company has invested 0.55 billion yuan to build production bases in Jiangsu and Henan. KELAIWEI company has the strength to continuously provide products and services for you, and the installation of nano carbon crystal steam room.
The eighth of the series of "reviewing the development history · encouraging young talents to strive for the first" of KELAIWEI company: scale breakthrough. On June 19th, 2018, Henan KELAIWEI Nano Carbon Material Co., Ltd. set up a research and development center in Dengfeng city, Henan province. "Those who win the Central Plains win the World", with the help of the development trend of Zhengzhou aviation port area, KELAIWEI Nano Carbon Material Co., Ltd. will usher in the "second spring" of career development ".
Henan KELAIWEI Nano Carbon Material Co., Ltd. has been engaged in the research of carbon nanotube materials for more than 20 years. Carbon nano-tube materials used in anode conductive additives of lithium batteries will improve the efficiency by 10% compared with carbon black, and can save a lot of conductive materials, increase the capacity of lithium batteries, and delay the service life of high-end lithium batteries at the same time. Therefore, it can be said that the performance of carbon nanotube materials is quite excellent.
KELAIWEI company will continue to invest in top expert teams and research and development funds to devote itself to the research and development of nanomaterials technology and equipment, providing you with nanomaterials products with high stability and high technical standards. In the past 20 years, the R & D team of KELAIWEI company-the expert team led by Professor Sun Xiaogang of Nanchang University has independently researched and developed the production and preparation technology of whisker carbon nanotubes. Our company has invested 0.45 billion in the construction of whisker carbon nanotubes powder project, today's KELAIWEI products have been exported to the world.
Henan KELAIWEI Nano Carbon Material Co., Ltd found that the chemical performance of the CNT transparent conductive film made of the CNT transparent conductive film is stable because of its excellent conductivity and conductivity, it has excellent conductive properties, and has both thermal conductivity and excellent mechanical properties (the hardness of whisker carbon nanotubes is one hundred times that of steel), and the nano carbon crystal steam room is installed.
Synthesis of carbon nanotubes by hydrothermal method. Put the acidic solution of sucrose (according to the ratio of 1 to 19, and mix it with h2so4-sucrose solution) into the reaction kettle, and cool it to the indoor temperature after the reaction of 180 degrees high temperature within 12 hours, after centrifugal separation, ionized water is removed, and after washing and drying, carbon nanotubes of 1 nanometer to 2 nanometer length can be obtained.
The installation of nano carbon crystal steam room, with the resumption of production and work of all walks of life in our country after March, if the 2020 international heat conduction and heat dissipation materials and equipment exhibition held in Shenzhen city, Guangdong province is held as scheduled, our company will send product technicians to participate actively, and we will launch our new products at that time. We sincerely look forward to meeting, talking, meeting and intersecting with you in the KELAIWEI exhibition area of Shenzhen Convention and Exhibition Center on August 27th, 2020.
