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Battery discharge capacity improvement device and method

A discharge capacity and storage battery technology, applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve problems such as limited and application limitations, improve environmental and working conditions, improve discharge capacity, and fully discharge potential Effect

Active Publication Date: 2020-11-06
必利恩(北京)新能源技术研究有限责任公司
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  • Abstract
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Problems solved by technology

[0002] At present, the common secondary batteries in the market, that is, storage batteries, mainly include lead-acid batteries, lithium-ion batteries, etc., which are widely used in various energy storage, energy-saving and clean energy systems and various electrical devices. The capacity and The energy density varies, but they are all very limited, which limits its application in the energy field, especially in the fields that require high discharge capacity or energy density of the battery. The discharge performance of the battery and the actual use The requirements are far apart, and the problems are prominent

Method used

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  • Battery discharge capacity improvement device and method

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Embodiment Construction

[0015] Such as figure 1 As shown, the storage battery discharge capacity improving device of the present invention includes a working battery pack 20, an energy converter 10, a controller 40 and a bidirectional electronic switch 50, wherein: the working battery pack 20 includes several working battery units, such as figure 1 The shown working battery cells B1 to Bn (n is a positive integer greater than or equal to 1); the energy-continuing device 10 includes a battery pack 11 and a potential booster 12; the battery pack 11 supplies power to the potential booster 12 and is connected to the potential The booster 12 is connected in series to output a charging voltage higher than the terminal voltage of the working battery unit to the working battery pack 20 (it can be considered that the potential booster 12 has carried out a potential boosting process on the battery pack 11 of the continuous energy), that is, the output of the continuous battery pack 10 The charging voltage is t...

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Abstract

The present invention discloses a battery discharge capacity improving device and a method. The device comprises a working battery pack, and an energy-renewing device. The working battery pack comprises a plurality of working battery units. The energy-renewing device comprises an energy-renewing battery pack and an electric potential elevator. Each working battery unit is provided with a bidirectional electronic switch. A controller can realize the change of the charge and discharge state of the corresponding working battery unit by controlling the charge and discharge switching state of the corresponding bidirectional electronic switch. The controller can realize that the energy-renewing device performs successive and in-turn charging on the working battery units by sending cyclic shifting charging signal(s) to all the bidirectional electronic switches. The energy-renewing device charges at least one working battery unit each time, and all the uncharged working battery units dischargeto a load. The charged working battery units receive a charging voltage to perform charging, and the discharging working battery units discharge to the load from a discharge output interface. The device and the method can effectively extending the discharge time and improve the battery discharge capacity without changing the battery original capacity.

Description

technical field [0001] The invention relates to a device for improving the discharge capacity of a storage battery and a method for improving the discharge capacity of a storage battery based on the device, belonging to the technical field of improving the discharge capacity of a storage battery. Background technique [0002] At present, the common secondary batteries in the market, that is, storage batteries, mainly include lead-acid batteries, lithium-ion batteries, etc., which are widely used in various energy storage, energy-saving and clean energy systems and various electrical devices. The capacity and The energy density varies, but they are all very limited, which limits its application in the energy field, especially in the fields that require high discharge capacity or energy density of the battery. The discharge performance of the battery and the actual use The requirements are very different, and the problems are prominent. [0003] Batteries are important basic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/44
CPCH01M10/44Y02E60/10
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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