Cascade charging method for zinc-nickel battery

A zinc-nickel battery and charging method technology, which is applied in the direction of secondary battery charging/discharging, battery overcharge protection, battery circuit devices, etc., can solve the problems of complicated circuits, high requirements for chargers, and high costs, so as to avoid overcharging, Effects of simplifying required design and prolonging service life

Pending Publication Date: 2021-11-05
森克创能(天津)新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the charging method of zinc-nickel batteries is generally carried out by using the method of constant current to constant voltage. However, this method has high requirements on the charger, complex circuits and high cost.

Method used

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  • Cascade charging method for zinc-nickel battery
  • Cascade charging method for zinc-nickel battery
  • Cascade charging method for zinc-nickel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: Table 1 shows the charging experiment data of a zinc-nickel battery whose cascade data is 30%.

[0042] Table 1

[0043]

Embodiment 2

[0044] Example 2: The charging experiment data of the zinc-nickel battery whose step data is 20% is shown in Table 2.

[0045] Table 2

[0046]

[0047]

Embodiment 3

[0048] Example 3: Table 3 shows the charging experiment data of a zinc-nickel battery with 10% cascade data.

[0049] table 3

[0050]

[0051]

[0052] Among them, Embodiment 1, Embodiment 2, and Embodiment 3 are the charging experiment data structures of zinc-nickel batteries with different cascade data respectively.

[0053] The accumulative capacitance of embodiment one is 124.21Ah, and the discharge capacitance is 123.37Ah;

[0054] The cumulative capacitance of the second embodiment is 123.89Ah, and the discharge capacitance is 123.22Ah;

[0055] The accumulative capacitance of embodiment three is 124.9Ah, and the discharge capacitance is 123.7Ah;

[0056] Through comparison, it can be known that the corresponding cumulative capacitance of zinc-nickel batteries with different cascade data is about 124Ah, and the corresponding discharge capacitance is about 123Ah. Among them, there is no big difference between the three sets of data. Therefore, it is shown that th...

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PUM

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Abstract

The invention discloses a cascade charging method for a zinc-nickel battery. The method comprises the following steps of S1, carrying out constant-current charging on the zinc-nickel battery by adopting an initial current so as to charge the voltage of the zinc-nickel battery to a preset voltage; S2, when the voltage of the zinc-nickel battery is charged to a preset voltage, reducing the cascade data on the basis of the initial current until the initial current is reduced to a cut-off current; S3, carrying out constant-current charging on the zinc-nickel battery by adopting the cut-off current; and S4, stopping charging the zinc-nickel battery when a preset condition is met. According to the invention, the zinc-nickel battery is charged in a constant-current step voltage limiting manner, so that the requirement design for a charger is simplified, and the cost of the charger can be reduced; the zinc-nickel battery is charged by controlling the charging voltage and the cut-off current, so that the charging amount of the zinc-nickel battery can be ensured, the overcharging of the zinc-nickel battery can be avoided, and the service life of the zinc-nickel battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of zinc-nickel batteries, in particular to a cascade charging method for zinc-nickel batteries. Background technique [0002] With the progress of society and the enhancement of environmental protection awareness, electric vehicles are gradually favored because they are powered by vehicle-mounted power supplies and can solve the problems of exhaust emissions from fuel vehicles, pollution of the environment, and high energy consumption. And the charging problem of electric vehicle is the problem that people pay close attention to very much, and it is related to popularization and promotion of electric vehicle. [0003] In the prior art, the charging method of the zinc-nickel battery is generally carried out by the method of constant current conversion to constant voltage. However, this method has high requirements on the charger, complicated circuit and high cost. [0004] Based on this, how to design a casc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00B60L53/00B60L58/15
CPCH01M10/44H02J7/007182H02J7/007186H02J7/00718H02J7/00302B60L53/00B60L58/15Y02T10/70Y02T10/7072Y02T90/14Y02E60/10
Inventor 许文武占耀冯忠厚
Owner 森克创能(天津)新能源科技有限公司
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