Hybrid battery power supply system with self-regulation capability and manufacturing method thereof

Abstract

The invention discloses a hybrid battery power supply system with a self-regulation capability and a manufacturing method thereof. The hybrid battery power supply system comprises one or more individual lead acid battery cells and one or more individual lithium manganate battery cells, wherein individual lead acid batteries are connected in series to form a lead acid battery pack branch; individual lithium manganate batteries are connected in series to form a lithium manganate battery pack branch; the open circuit voltage VP of the lead acid battery pack branch is smaller than the open circuit voltage VM of the lithium manganate battery pack branch, and difference value of VM and VP is larger than or equal to 0.10 and smaller than or equal to 0.2; and the lead acid battery pack branch is electrically connected in parallel with the lithium manganate battery pack branch. The hybrid battery power supply system utilizes excellent high-power discharging performance of a lithium manganate battery pack to enable the discharging mode of the power supply system to practically protect the lead acid battery pack, and prolongs the service life of the lead acid battery pack. According to the invention, the current regulation during the charging is determined by the characteristics of the batteries connected in parallel, and the interference of any electronic circuit is not required.

Description

technical field [0001] The invention relates to a hybrid battery power supply system, in particular to a hybrid battery power supply with self-regulating capability. Background technique [0002] As we all know, lead-acid batteries and lithium manganese oxide batteries are secondary batteries with different chemical systems, and each has its own characteristics. Figure 6 It is a simple comparison of 24V lead-acid battery pack and lithium manganese oxide battery pack. Among them, the lead-acid battery has the advantages of stable voltage, safety and reliability, low price, wide application range, abundant raw materials and high recycling rate. It is the battery with the largest output and widest application among all kinds of batteries in the world. Back-up power for telecommunications, banking, etc., solar and wind energy storage, automobiles, motorcycles, and electric vehicles. However, lead-acid batteries also expose many defects in the application process: [0003]...

AI Technical Summary

Problems solved by technology

[0019] 2. By changing the electrolyte density of the lead-acid battery and doping other suitable lithium battery cathode materials in the lithium manganate battery cathode material, the interaction between two different types of battery packs is solved at a lower cost and with higher efficiency. the problem of interference;

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