2023-04-23
Analysis of the Causes of Thermal Runaway in Batteries and Leakage Failures
There are many factors that can trigger thermal runaway in batteries. High charging voltages and excessive gas evolution can both lead to thermal runaway. If a single cell within a battery pack experiences severe thermal runaway while the constant voltage setting for charging remains unchanged, the remaining cells will also experience relatively high charging voltages, potentially resulting in thermal runaway as well. The causes of battery thermal runaway include:
2023-04-23
What are the causes of leakage in lead-acid batteries?
Battery packs are generally divided into maintenance‑free conventional lead‑acid batteries and maintenance‑free high‑power lead‑acid batteries. “Maintenance‑free” means that no additional electrolyte needs to be added during subsequent maintenance.
2023-04-23
Application of Three Types of Sealants in New Energy Vehicle Batteries
Currently, the use of automobiles is increasing steadily. New energy electric vehicles represent a mainstream trend in addressing issues related to energy, the environment, and urban transportation, and they also constitute a key direction for the future development of the automotive industry. However, the safety of new energy vehicles is increasingly attracting widespread attention from people around the world.
Applications and Precautions for Epoxy Resin Adhesives in Batteries
Epoxy sealant specifically designed for storage batteries is primarily used for bonding the cell cover to the battery case and sealing the terminal posts, and it is divided into mid‑cover adhesive and terminal post adhesive. The mid‑cover adhesive, also known as cell cover adhesive, sealant, or cover sealing adhesive, is employed to bond and seal the gap between the battery cell cover and the battery case; the terminal post adhesive, also referred to as red–black adhesive, red–blue adhesive, terminal adhesive, marking adhesive, or identification adhesive, is used to seal and mark the positive and negative terminals of the battery. The seal between the battery case and the cover is critical to the overall sealing performance of the battery—this is mainly because the contact area between the case and the cover is large, the geometry is complex, the adhesive layer is directly exposed to acidic gases and electrolyte, and it is frequently subjected to external impacts. As a result, air and liquid leakage can easily occur at the interface between the case and the cover. To ensure that the cell cover remains firmly bonded to the battery case during operation, the mid‑cover adhesive must exhibit excellent adhesion and acid resistance. Enhancing the adhesive sealing performance of storage batteries is inseparable from the proper use of battery sealant; therefore, during application, it is essential to strictly follow the sealant’s instructions. In the actual process, whether the condition of the battery bonding surfaces, the mixing ratio of the epoxy resin adhesive, the curing temperature, and the potting process are handled correctly all have a direct impact on the final adhesive performance of the sealant.
23
2023/04
How to Choose the Right Silicone Products for Electronics
Mature performance. Flexible processing options. Simpler assembly and thermal management. Enhanced reliability. Exceptional adhesion. No matter what outcome you’re aiming for, adhesives and sealants play a critical role in protecting electronic components, advanced assemblies, and lighting modules from environmental stresses and moisture—even in the most demanding applications.
23
2023/04
What kind of adhesive is used for sealing lead-acid batteries?
Epoxy resin is a high‑molecular polymer with the molecular formula (C11H12O3)n, serving as a general term for a class of polymers that contain two or more epoxy groups in their molecular structure. It is a condensation product of epichlorohydrin and bisphenol A or polyols. Due to the chemical reactivity of the epoxy group, it can be ring‑opened by various compounds containing active hydrogen atoms, undergoing curing and crosslinking to form a network structure; therefore, it is a thermosetting resin. Bisphenol A–type epoxy resins not only boast the highest production volume and the most comprehensive range of formulations, but new modified varieties continue to emerge, and their quality is steadily improving.
23
2023/04
What causes unevenness after potting compound curing? Does it affect performance?
During the potting process, encapsulating adhesive exhibits fluidity and, after curing, develops a smooth surface with a sleek, thin film layer. However, some users have noticed that the surface of the cured encapsulating adhesive becomes uneven. What causes this phenomenon, and does it affect the performance of the encapsulating adhesive?
23
2023/04
Basic Knowledge of Epoxy Resins and Epoxy Adhesives
Epoxy resin refers to a general term for polymeric compounds that contain two or more epoxy groups in their molecular chain structure; it is a type of thermosetting resin, with bisphenol A epoxy resin being a representative example.
23
2023/04
Detailed Explanation of the Application and Precautions for Sealants in Batteries
Epoxy resin sealants specially designed for batteries are primarily used for bonding the cell cover to the battery case and sealing the terminal posts in maintenance‑free lead‑acid batteries, and are divided into mid‑cover adhesive and terminal post adhesive. Mid‑cover adhesive, also known as cell cover adhesive, sealant, or cover sealing adhesive, is employed to bond and seal the space between the battery cell cover and the battery case; terminal post adhesive, also referred to as red/black adhesive, red/blue adhesive, terminal adhesive, marking adhesive, or identification adhesive, is used to seal and mark the positive and negative terminals of the battery. The seal between the battery case and cover is critical to the overall sealing performance of the battery—this is because the contact area between the case and cover is large, the geometry is complex, the adhesive layer is directly exposed to acidic gases and electrolyte, and it is frequently subjected to external impacts. As a result, air and liquid leakage can easily occur at the interface between the case and cover. To ensure that the cell cover remains firmly bonded to the battery case during operation, mid‑cover adhesive must exhibit excellent adhesion and acid resistance.
23
2023/04
We are a source manufacturer with export qualifications, specializing in the production and sale of lead-acid battery sealing compounds and terminal paste.
Tel
Phone
Phone
Fax
0797-3361958