/ Asahi/August 05, 2022 Guangzhou -- As the world pays more attention to climate change, the future trend of the new-energy vehicle industry is becoming clearer. By the end of June 2022, there were more than 10.01 million new energy vehicles in China, according to the latest data released by the Ministry of Public Security. Among them, the number of new energy vehicles registered in the first half of the year increased 100.26 percent from the same period last year, hitting a record high. With "Xiaopeng, Nezha, Ideo and Nio" as the representative of autonomous vehicle enterprises, the domestic delivery of new energy vehicles has been soaring.
"China International New Energy Vehicle Conference" held on August 4-5, focusing on cutting-edge technologies and products in the industry. Dr. Yongli Chen from Bowei Alloy gave a talk on "Copper alloy Solutions for high voltage and high current connectors for electric vehicles".Facing the trend of new energy automobile industry, focus on the pain points of industry materials
While bringing innovative changes, there are also some pain points that have to be solved.
Some new energy vehicles charge slowly and run short, so that consumers' trust in new energy vehicles is reduced; In addition, some new energy vehicles cause fire accidents when charging due to current overload, which is a potential safety hazard.
Fast charge is an effective solution for slow charging and insufficient battery life. Fast charging requires a high voltage, short period of time through more current to reduce charging time. However, some fast charging piles may cause fire hazards when charging new energy vehicles due to high voltage and large current. In this case, it is particularly important to select excellent elastic and conductive materials to provide guarantee for fast charging piles and chargers.
In addition, power requirements are rising as the number of interconnection devices for new energy vehicles multiplies. But new energy vehicles in the design space is still limited. Therefore, in response to this trend, the current new energy vehicle application connectors gradually turn to miniaturization.
The increase of voltage and current requires further improvement of copper conductivity to reduce the temperature rise generated during connector use. Miniaturization requires materials with higher elastic modulus and strength to ensure connection reliability. While traditional copper alloy materials are difficult to meet the current development trend, in order to fully meet the high voltage, large current and miniaturization requirements, it is necessary to put forward higher requirements for the comprehensive strength and conductivity of connector materials for new energy vehicles.
In-depth in the field of new energy vehicles, to create customized material solutions
In order to effectively solve the material pain points in the development process of new energy vehicles, Bowei Alloy based on its first-mover advantage in the field of alloy materials and technology accumulation, innovative development of customized solutions for specific problems.
EValloy60 has a strength of over 600MPa and a conductivity of nearly 60%IACS, making it one of the ideal materials for the new energy vehicle industry to respond to future trends.
EValloy46 combines excellent electrical conductivity, excellent mechanical properties, stress relaxation resistance, and fatigue resistance to provide customers with higher performance redundancy design. When applied to probe formation, the material has very low temperature rise, and can still maintain enough service performance after 30,000 times of service life wear. It is a very excellent material for probe formation. In addition,EValloy46 is more environmentally friendly than C17510 beryllium copper, which is commonly used as a probe for power batteries.
At the same time, the copper telluride alloy EValloy91 and high-strength wear-resistant cop-nickel-tin alloy BearMet350 developed by Bo Wei alloy have again effectively solved the quality and performance upgrade and bearing life extension of high voltage DC relay/contactor for new energy vehicles.
In addition, copper EValloy®98, oxygen free copper EValloy®99, copper Te copper EValloy®91, chromium zirconium copper EValloy®85, all have excellent electrical and thermal conductivity properties, and are widely used as new energy vehicle charging gun terminals, high voltage wiring harness joints and relay terminal materials for the new energy automobile industry The development of power.
Deepen the alloy material industry and realize the independent innovation of domestic materials
As a listed enterprise that continues to deepen its efforts in the field of materials, Bowei Alloy provides customized material solutions for new energy vehicles through continuous exploration and independent innovation in the field of materials, shortening the development process of the new energy automobile industry. Become a strong competitor in the field of new energy automobile alloy materials.
In the global digitization process, Bowei Alloy further through independent innovation, to build a systematic digital platform, with 2 million effective alloy data assets as the support, the formation of a complete digital industry chain, constantly introduce innovative materials, all-round enabling new energy automobile industry upgrading.
< /p>Bowei Alloy has a strong confidence and determination to innovate. With the courage to overcome difficulties, the pursuit of excellence and the will to win, Bowei Alloy is deeply engaged in the alloy material industry, actively seizing the commanding heights of scientific and technological competition and future development, and making greater contributions to the independent innovation of Chinese materials and the great rejuvenation of the Chinese nation.
