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Composite high-energy storage battery system and discharge energy lifting method

A battery system and high-energy technology, applied in battery circuit devices, efficient vehicle charging, current collectors, etc., can solve the problems of restricting technological progress in the energy industry, low energy density, weak discharge capacity, etc., and improve the electrochemical reaction environment and working conditions, improve the discharge capacity, and fully discharge the effect of the potential

Inactive Publication Date: 2018-12-21
必利恩(北京)新能源技术研究有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Batteries are important basic energy components in various electrical devices and equipment. The above-mentioned defects of existing batteries, such as weak discharge capacity, low energy density, and high cost, have become serious obstacles to restricting the technological progress of the energy industry.

Method used

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  • Composite high-energy storage battery system and discharge energy lifting method

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Embodiment Construction

[0012] like figure 1 As shown, the composite high-energy battery system of the present invention includes a battery pack 20, an external power supply 10, a voltage regulator 80, a controller 40 and a bidirectional electronic switch 50, wherein: the battery pack 20 includes several battery cells, such as figure 1 The battery cells B1 to Bn shown (n is a positive integer greater than or equal to 1); the voltage regulator 80 adjusts the voltage provided by the external power supply 10 to output a charging voltage higher than the terminal voltage of the battery cell to the battery pack 20; each The battery unit is equipped with a bidirectional electronic switch 50, and the controller 40 realizes the change of the charging and discharging state of the battery unit by controlling the charging and discharging switching state of the bidirectional electronic switch 50; signal to realize the successive charging of the storage battery units, each time at least one storage battery unit is...

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Abstract

The invention discloses a composite high-energy storage battery system and a discharge energy lifting method, wherein the system comprises a battery pack. The battery pack comprises a plurality of battery cells. The voltage regulator regulates the voltage supplied from the external power supply to output a charging voltage to the battery pack that is higher than the voltage at the battery cell terminal. Each battery cell is provided with a bi-directional electronic switch, and the controller controls the charge / discharge switching state of the bi-directional electronic switch to realize the change of the charge / discharge state of the battery cell. The controller generates cyclic shift charging signals to each bidirectional electronic switch to realize successive alternate charging of the battery cells, and each battery cell that charges at least one battery cell without charging each time discharges to a load. The invention greatly improves the discharge energy of the battery and greatly enhances the discharge capacity, the equivalent capacity and the energy density of the battery.

Description

technical field [0001] The invention relates to a composite high-energy storage battery system and a discharge energy improvement method based on the system, belonging to the technical field of storage battery capacity increase and discharge capacity improvement. Background technique [0002] At present, the common secondary batteries in the field of new energy, that is, storage batteries, mainly include lead-acid batteries and various lithium-ion batteries. They have been widely used in various types of energy storage, energy saving, clean energy power generation and electric vehicles. Class electrical installations. The capacity and energy density of these batteries vary, but they are all very limited, which limits their application in the energy field, especially in fields that require high discharge capacity or energy density of batteries. The discharge performance of the battery is far from the actual use requirements, and the problem is prominent. Batteries are impor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/14
CPCH02J7/1492Y02T10/92
Inventor 刘森磊
Owner 必利恩(北京)新能源技术研究有限责任公司
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