Key issues in solid electrolytes need to be overcome -Lithium - Ion Battery Equipment
Industry insiders say, "Finding an electrolyte with a suitable ratio is a bit like taking traditional Chinese medicine. It's like taking different prescriptions for different physiques and illnesses. The formula of the electrolyte needs to be determined based on the type of positive and negative electrode materials, battery shape, and battery performance of the lithium battery."
[Performance] The volume and price of electrolyte solvent products rose sharply. Shi Dashenghua’s net profit in the first half of the year was 132 million yuan.
On the evening of August 5, Shi Dashenghua disclosed the interim report. In the first half of this year, the company achieved operating income of 2.738 billion yuan, a year-on-year increase of 10.57%, and a net profit attributable to shareholders of listed companies of 132 million yuan, a year-on-year increase of 52.24%, of which the net profit attributable to shareholders of listed companies after deducting non-recurring gains and losses was It was 135 million yuan, an increase of 58.05% over the same period last year; the earnings per share was 0.65 yuan. The company's weighted average return on net assets during the reporting period reached 8.07%, a year-on-year increase of 2.54 percentage points.
Shi Dashenghua's semi-annual report shows that the company's supply of electrolyte solvents accounts for about 40% of the world's total, and its export volume accounts for about 80% of domestic electrolyte solvent exports. Currently, the company cooperates with domestic Tianci Materials, Cathay Pacific, BYD, etc., as well as international Mitsubishi Chemical, Ube Ko We have established stable strategic cooperation with well-known domestic and foreign electrolyte companies such as Enchem and Enchem, and provided the most basic energy materials for world-renowned new energy vehicles such as Tesla, BYD, BMW, Benz, BAIC New Energy, Geely, etc. through battery companies.
[Observation] Electrolyte "protects" battery safety. Key issues in solid electrolytes still need to be broken through.
Taking lithium-ion batteries as an example, the electrolyte is one of the four key materials (positive electrode, negative electrode, separator, and electrolyte). It plays a role in conducting lithium ions between the positive and negative electrodes in the battery. In other words, without its transportation, the battery would not function properly. It cannot be charged or discharged. He Yanbing pointed out that the electrolyte currently used is a flammable system. The smaller the viscosity, the stronger the ion transport capacity, and the higher the ion conductivity. There is a protective thin layer called the solid electrolyte interface (SEI) film on the surface of the negative electrode of the lithium battery, which is crucial to the cycle stability of the negative electrode and has a great impact on the safety of the battery. The composition of the electrolyte determines the properties of the SEI film, which is important for the negative electrode cycle stability. It has an important impact on battery cycle stability and safety.(Lithium - Ion Battery Equipment)
Industry insiders say, "Finding an electrolyte with a suitable ratio is a bit like taking traditional Chinese medicine. It's like taking different prescriptions for different physiques and illnesses. The formula of the electrolyte needs to be determined based on the type of positive and negative electrode materials, battery shape, and battery performance of the lithium battery." In fact, an important part of the research on battery electrolytes is to test the safety factor of new electrolytes in batteries, which requires various experiments such as thermal shock, acupuncture, short circuit, overcharge, and over-discharge; for example, in thermal shock testing, The battery is stored in a thermal shock box at 120°C to 150°C. The temperature changes of the battery and the out-of-control behavior of the battery are checked to see whether the battery is flammable or explosive. Some researches need to test various battery "explosions" in the laboratory to test the battery's performance. safety.
"The future research direction is to use solid electrolytes to replace traditional organic liquid electrolytes. All-solid-state lithium-ion batteries are expected to fundamentally solve battery safety problems and become an ideal power source for electric vehicles and large-scale energy storage. However, there are currently some key issues. It will take time to achieve a breakthrough on this issue." Dr. He Yanbing, associate researcher at the Department of Energy and Environment, Shenzhen Graduate School of Tsinghua University, emphasized. (Source: Science and Technology Daily)
[Performance] The volume and price of electrolyte solvent products rose sharply. Shi Dashenghua’s net profit in the first half of the year was 132 million yuan.
On the evening of August 5, Shi Dashenghua disclosed the interim report. In the first half of this year, the company achieved operating income of 2.738 billion yuan, a year-on-year increase of 10.57%, and a net profit attributable to shareholders of listed companies of 132 million yuan, a year-on-year increase of 52.24%, of which the net profit attributable to shareholders of listed companies after deducting non-recurring gains and losses was It was 135 million yuan, an increase of 58.05% over the same period last year; the earnings per share was 0.65 yuan. The company's weighted average return on net assets during the reporting period reached 8.07%, a year-on-year increase of 2.54 percentage points.
Shi Dashenghua's semi-annual report shows that the company's supply of electrolyte solvents accounts for about 40% of the world's total, and its export volume accounts for about 80% of domestic electrolyte solvent exports. Currently, the company cooperates with domestic Tianci Materials, Cathay Pacific, BYD, etc., as well as international Mitsubishi Chemical, Ube Ko We have established stable strategic cooperation with well-known domestic and foreign electrolyte companies such as Enchem and Enchem, and provided the most basic energy materials for world-renowned new energy vehicles such as Tesla, BYD, BMW, Benz, BAIC New Energy, Geely, etc. through battery companies.
[Observation] Electrolyte "protects" battery safety. Key issues in solid electrolytes still need to be broken through.
Taking lithium-ion batteries as an example, the electrolyte is one of the four key materials (positive electrode, negative electrode, separator, and electrolyte). It plays a role in conducting lithium ions between the positive and negative electrodes in the battery. In other words, without its transportation, the battery would not function properly. It cannot be charged or discharged. He Yanbing pointed out that the electrolyte currently used is a flammable system. The smaller the viscosity, the stronger the ion transport capacity, and the higher the ion conductivity. There is a protective thin layer called the solid electrolyte interface (SEI) film on the surface of the negative electrode of the lithium battery, which is crucial to the cycle stability of the negative electrode and has a great impact on the safety of the battery. The composition of the electrolyte determines the properties of the SEI film, which is important for the negative electrode cycle stability. It has an important impact on battery cycle stability and safety.(Lithium - Ion Battery Equipment)
Industry insiders say, "Finding an electrolyte with a suitable ratio is a bit like taking traditional Chinese medicine. It's like taking different prescriptions for different physiques and illnesses. The formula of the electrolyte needs to be determined based on the type of positive and negative electrode materials, battery shape, and battery performance of the lithium battery." In fact, an important part of the research on battery electrolytes is to test the safety factor of new electrolytes in batteries, which requires various experiments such as thermal shock, acupuncture, short circuit, overcharge, and over-discharge; for example, in thermal shock testing, The battery is stored in a thermal shock box at 120°C to 150°C. The temperature changes of the battery and the out-of-control behavior of the battery are checked to see whether the battery is flammable or explosive. Some researches need to test various battery "explosions" in the laboratory to test the battery's performance. safety.
"The future research direction is to use solid electrolytes to replace traditional organic liquid electrolytes. All-solid-state lithium-ion batteries are expected to fundamentally solve battery safety problems and become an ideal power source for electric vehicles and large-scale energy storage. However, there are currently some key issues. It will take time to achieve a breakthrough on this issue." Dr. He Yanbing, associate researcher at the Department of Energy and Environment, Shenzhen Graduate School of Tsinghua University, emphasized. (Source: Science and Technology Daily)
