Formula of additive for improving low-temperature charge property of lead-acid storage battery

Abstract

The invention relates to a storage battery plate additive, belonging to the field of low-temperature storage battery charge property improvement. To improve the low-temperature charge property of a power storage battery, a formula of a lead plaster additive for storage battery positive and negative plates is provided. When the conductivity of active substances is improved, the porosity and the strength of the active substances are also improved, so that the low-temperate charge acceptance capability of the storage battery is improved, and the circulation service life of the battery is prolonged. The formula is achieved by combining the following additives: conductive graphite fibers or conductive carbon fibers are added into the lead plaster, with the addition amount accounting for 0.05-0.08% of the weight of lead oxide so that the mechanical strength and the conductivity of lead plaster are improved; the following auxiliary materials in percentage by weight of lead powder are added: 0.2% of acetylene black, 0.03% of aquadag, 0.03-0.05% of gas phase silicon dioxide, 0.06-0.08% of red lead, and 10% of pure water; the materials are sufficiently stirred into suspension, and subsequently the suspension is added into the lead powder and is stirred.

Description

Technical field: [0001] The invention relates to an additive for battery polar plates, which belongs to the field of improving low-temperature charging performance of batteries. Background technique: [0002] Lead-acid batteries have been used for more than 100 years, and they have been used in more and more fields. From the start of automobiles, they have gradually developed in the direction of electric motorcycles and electric vehicle power batteries in recent years. As a new energy vehicle power battery, many new problems need to be solved. Customers in Hebei, Shandong and other places park their electric four-wheel vehicles outdoors in winter. Due to the low temperature in winter, sometimes minus 10°C-18°C, and the low-temperature charging performance of the existing power batteries cannot meet the requirements. The specific performance That is, when the battery is charged at low temperature, it will be fully charged, and the voltage will rise to a high level in a few m...

AI Technical Summary

Problems solved by technology

The heating plate is helpful to the charging and driving process of the battery at low temperature, but this method is highly dangerous. If there is a problem with the heating control, it may burn out the battery and cause a fire. These methods to improve the charging acceptance of the battery are foreign In the current method, it is a temporary solution, not a permanent cure, which will cause a lot of inconvenience to customers. Therefore, there is an urgent need for a solution to improve the battery's low-temperature charging acceptance during the battery manufacturing process.