The Commercialization of Samsung Graphene Battery Is Endless

Including Dongxu optoelectronics, baotailong, fosu technology, Jiawei Co., Ltd., Shanshan Co., Ltd., Dow technology, kaina Co., Ltd., Nandu power supply, kangdexin and other graphene batteries in the field of lithium battery materials.Yesterday, Samsung Electronics announced that it had developed graphene battery technology. The capacity of this graphene based battery is 45% higher than that of the battery on the market, because it can be fully charged in 12 minutes with a "graphene ball". Because graphene batteries can remain stable at up to 60 degrees Celsius, the new battery is also expected to be used in electric vehicles.Samsung advanced technology research institute (sait) said that it had published the research in the journal Nature communication, entitled "graphene ball of rechargeable lithium battery supporting fast charging and high bulk energy density", and applied for patents in South Korea and the United States.

As soon as the news came out, it immediately burst the circle of friends, but what we got was just a cold look, not cheers.Khasha ghaffarzadeh, director of ID tech ex, a research company, said that Samsung has made some interesting achievements, but the world still has a long way to go from commercial development of such batteries. This battery technology level is still in the stage from concept verification to demonstration."This is a great technology with a wide range of potential uses, but graphene batteries will take a long time to put into mass production," said Jin Yongyou of SK securities. "The key is who can commercialize this technology first. It is not easy to produce high-quality electronic graphene on a large scale by using fine processing technology."

It is worth mentioning that the news of graphene battery often appears in the domestic lithium battery field. According to incomplete statistics of Gaogong lithium battery, including Dongxu optoelectronics, baotailong, fosu technology, Jiawei Co., Ltd., Shanshan Co., Ltd., Dow technology, kaina Co., Ltd., Nandu power supply, kangdexin and other graphene batteries in the field of lithium battery materials.However, the so-called graphene battery on the market only uses graphene as a coating material and adds it to the existing battery materials in the form of conductive agent, and the profit prospect is not clear.A person familiar with technology said that from a technical point of view, there are two problems with graphene: 1. The graphene obtained by cutting the graphite layer by layer can facilitate the insertion and de insertion of lithium ions. However, the surface area of graphene is relatively large. Under the current voltage of lithium intercalation of graphene, lithium ions will react with electrolyte on the surface of graphite to form SEI (i.e. solid-liquid interface) film.

SEI membrane will consume not only electrolyte, but also metal lithium from the positive electrode (the first efficiency of the battery is very low. The first efficiency is the total amount of lithium ions returned after the first charge divided by the total amount of lithium ions from the first charge). The cathode material is the most expensive material in lithium-ion batteries.2. Even if graphite is layered during preparation, it is impossible to maintain the layered state during application. It is either rolled up or several layers are stacked together without real separation. If gathered together, it will not achieve the effect it was intended to achieve.In short, graphene is unlikely to be used as negative material. Graphene may be used as a conductive agent in the future. However, it should be noted that compared with other types of conductive agents, it is unknown whether the cost performance of expensive graphene as conductive agent is better.