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Single-charge and single-cut charging method and charging system for storage battery

A charging system, single charging and single cutting technology, applied in the direction of secondary battery charging/discharging, battery circuit device, secondary battery repair/maintenance, etc., can solve the problems of inconsistent battery voltage, battery overcharge, performance degradation, etc. Facilitates packet management and eliminates overcharging effects

Active Publication Date: 2018-06-12
SHANGHAI INST OF SPACE POWER SOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for charging batteries used in special occasions, such as launch vehicles, which can set different charging parameters according to the state of each single battery in the battery pack, so as to realize the charging of zinc-silver battery packs or battery packs. Independent charging of each single battery in a lithium-ion battery pack, etc., to solve the problem of inconsistent battery voltage caused by the battery manufacturing process or other factors, and the performance degradation caused by the battery not being fully charged, as well as the problem of battery overcharging

Method used

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  • Single-charge and single-cut charging method and charging system for storage battery
  • Single-charge and single-cut charging method and charging system for storage battery

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Experimental program
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Embodiment

[0053] Adopt 7 strings of 10Ah lithium-ion battery packs, 7-way linear charging module power supply (Agilent 66101A module power supply, high precision), a computer (Advantech 615L) with a set of multi-channel power supply control and acquisition software, 14-way voltage drop compensation connection Charging terminals (seven positive, seven negative).

[0054] The selection parameters of the linear charging module power supply are: output voltage: 0~8V, output current: 0~16A, maximum output power: 128W, voltage accuracy: 5mV, current accuracy: 8mA. Diode selection parameters are maximum current: 20A, maximum withstand voltage: 100V. Isolation voltage between linear power supplies of modules: 200V.

[0055] One end of the transfer connector in the voltage drop compensation connection charging terminal is a 4mm round hole, which can be inserted into a 3.5mm diameter banana plug, and the other end is an M5 thread, which can be screwed on the M5 terminal of the single battery.

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Abstract

The invention discloses a single-charging and single-cutting charging method and charging system for storage batteries. According to the method, each single battery in a storage battery pack is provided with one path of special charging module power supply; each single battery is independently controlled to charge in a one-on-one manner; and the single-charging and single-cutting charging method can be applied to a zinc-silver storage battery pack or a lithium-ion storage battery pack. The charging system comprises the storage battery pack, multiple paths of charging module power supplies, a computer and voltage-drop compensation connection charging terminals; the storage battery pack comprises a plurality of single batteries; each single battery is provided with one path of special charging module power supply; each path of charging module power supply is provided with two voltage-drop compensation connection charging terminals; the voltage-drop compensation connection charging terminals are connected with the charging module power supplies and the single batteries respectively; and the computer can control various paths of charging module power supplies. According to the single-charging and single-cutting charging method and charging system for the storage batteries disclosed by the invention, different charging parameters can be set according to the state of each single battery in the storage battery pack; and independent charging of each single battery is achieved.

Description

technical field [0001] The invention relates to a charging method and system for storage batteries, in particular to a single-charge and single-cut charging method and charging system for storage batteries. Background technique [0002] At present, the power sources of various instruments and meters, pyrotechnics, etc. are mainly zinc-silver battery packs and lithium-ion battery packs. The battery pack is usually composed of multiple single cells connected in series. The capacity mismatch between the batteries will affect the capacity of the entire battery pack. Generally, during the charging process of the battery, there is neither an overcharge protection device nor a voltage equalization device. Without protection or voltage equalization measures, there will be two ways to end charging: (1) Stop charging when the single battery with the highest charging voltage reaches the cut-off voltage; (2) When the single battery with the lowest charging voltage reaches the cut-off vo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44H02H7/18
CPCY02E60/10
Inventor 吕士银王冠梁一林马军郑奕
Owner SHANGHAI INST OF SPACE POWER SOURCES
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