In today's energetic development of new energy, battery life technology has become one of the core, all major companies are investing in battery technology research and development.As we all know, graphene is called 'black gold', is a form of carbon, electron transfer About 140 times the rate of silicon, more is considered to be the future of automotive and cell phone batteries and other hardware excellent material.But, due to technical reasons, resulting in a real graphene battery still did not come out.
As one of the world's leading technology companies, Samsung Electronics recently announced that the company has developed a graphene battery technology that increases battery capacity while charging up to 5 times the current standard.
Samsung Advanced Technology Research Institute (SAIT) said that this graphene-based battery capacity is 45% higher than currently available cells Graphene is a form of carbon that is considered the perfect material for use in batteries because Its electron mobility is about 140 times that of silicon.
Samsung said batteries equipped with 'graphene balls' will fill in only 12 minutes, compared with an hour's worth of existing batteries, since graphene batteries can hold up to 60 degrees Celsius Stable, the new battery is also expected to be used in electric vehicles.
Samsung Advanced Institute of Technology said they have released the study to Nature Communications magazine titled "Graphene Ball for Rechargeable Lithium-Ion Battery Supporting Rapid Charge, High-Volume Energy Density" and in South Korea And the United States applied for a patent.
It is noteworthy that, prior to Samsung, many companies in the industry also claimed that they have developed a graphene battery, but still a long way from the commercial.In the same period last year, Huawei announced that it had developed The industry's first high-temperature long-life graphene-assisted lithium-ion battery.
Unlike the graphene balls of Samsung, the graphene-assisted high-temperature lithium-ion battery technology developed by Huawei is to add special additives to the electrolyte to remove traces of water and avoid the pyrolysis of the electrolyte. The positive electrode of the battery is modified with Large single crystal ternary materials to improve the thermal stability of the material; the same time, the use of new materials, graphene, lithium-ion battery can be achieved with efficient cooling environment.
According to Huawei's official test results show that the graphene-assisted high-temperature lithium-ion battery temperature drop than ordinary lithium ion battery 5 ℃; 60 ° C high temperature cycle 2000 times, the capacity retention rate is still over 70%; 60 ℃ high temperature storage 200 days, less than 13% capacity loss.
However, even if various research results are released, they are still far away from the commercial ones. They are still far from the real graphene batteries and we still have to wait.