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Formation process of zinc-nickel battery

A zinc-nickel battery and process technology, which is applied in the field of zinc-nickel battery formation process, can solve battery damage and other problems, and achieve the effects of avoiding damage, good formation effect, and easy development

Active Publication Date: 2020-05-22
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

However, in this formation process, each charging stage is constant current charging, that is, charging for more than ten hours at the same strong current, which is easy to cause damage to the battery

Method used

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  • Formation process of zinc-nickel battery
  • Formation process of zinc-nickel battery
  • Formation process of zinc-nickel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A process for forming a zinc-nickel battery, comprising the following steps:

[0027] (1) Soak the zinc-nickel battery to be formed and let it stand for 24 hours after injection, and the density of the injected electrolyte solution is 1.295g / l; (2) The first formation process: 0.02C constant current charging for 3 hours, then 0.08C constant current charging 10h, then turn to 0.05C constant current charge for 10h, stand still for 4h, 0.2C discharge to 1.10*nV; (2) Second formation process: 0.08C constant current charge for 11h, control voltage 1.95*nV to 0.03C constant current charge 8h, control voltage 1.95*nV, stand still for 4h, discharge to 1.30*nV at 0.2C; (3) Constant current and constant voltage charging: current 0.2C, voltage 1.90*nV, cut-off current 0.04C, total charging time is 7h, static Set for 4h, discharge at 0.2C to 1.30*nV formation, it takes 85h, and the total charge time for two formations is 42h.

Embodiment 2

[0029] A process for forming a zinc-nickel battery, comprising the following steps:

[0030] (1) Soak the zinc-nickel battery to be formed and let it stand for 12 hours, and the density of the injected electrolyte solution is 1.300g / l; (2) The first formation process: 0.03C constant current charging for 3 hours, then 0.09C constant current charging 10h, then switch to 0.04C constant current charge for 8h, stand still for 3h, 0.2C discharge to 1.10*nV; (2) Second formation process: 0.09C constant current charge for 10h, control voltage 1.95*nV to 0.03C constant current charge 8h, control voltage 1.95*nV, stand still for 3h, discharge to 1.30*nV at 0.2C; (3) constant current and constant voltage charging: current 0.2C, voltage 1.90*nV, cut-off current 0.04C, total charging time is 7h, static Set it for 3h, discharge at 0.2C until the formation of 1.30*nV is completed, it takes 67h, and the total charging time for two formations is 39h.

Embodiment 3

[0032] A process for forming a zinc-nickel battery, comprising the following steps:

[0033] (1) Soak the zinc-nickel battery to be formed and let it stand for 10 hours after injection, and the density of the injected electrolyte solution is 1.300g / l; (2) The first formation process: 0.04C constant current charging for 2 hours, then turn to 0.10C constant current charging 9h, then turn to 0.05C constant current charge for 8h, stand still for 0.5h, 0.2C discharge to 1.10*nV; (2) Second formation process: 0.10C constant current charge for 10h, control voltage 1.95*nV to 0.05C constant current Charge for 3.2h, control voltage 1.95*nV, stand still for 0.5h, discharge to 1.30*nV at 0.2C; (3) Constant current and constant voltage charging: current 0.2C, voltage 1.90*nV, cut-off current 0.04C, total charging time is 7h, stand for 2h, discharge at 0.2C until the formation of 1.30*nV is completed, it takes 52.2h, and the total charging time for two formations is 32.2h.

[0034] by att...

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Abstract

The invention relates to the technical field of zinc-nickel battery formation, and discloses a formation process of a zinc-nickel battery. The formation process comprises the following steps: injecting liquid into the zinc-nickel battery to be formed, soaking the zinc-nickel battery to be formed, allowing the zinc-nickel battery to stand still, and performing twice formation processes on the zinc-nickel battery, wherein each formation process comprises a charging stage and a discharging stage, and a variable current charging mode is adopted in the charging stage. According to the formation process of the zinc-nickel battery, a variable current mode is adopted for charging, so that the damage of strong polarization to the battery can be avoided, the damage of strong overcharge to the battery can be avoided, and meanwhile, the full development of battery capacity can be ensured.

Description

technical field [0001] The invention relates to the technical field of formation of zinc-nickel batteries, in particular to a formation process of zinc-nickel batteries. Background technique [0002] The formation is to charge the battery once after it is produced, so as to activate the battery. Its function is similar to the "formatting" of a floppy disk; the battery can start normal charging and discharging after the formation is completed. Simply put, the principle is to charge the battery for the first time to activate the active material in the battery. [0003] The energy density of zinc-nickel batteries is relatively high, which can reach 80-90Wh / kg, which is much higher than that of lead-acid batteries and nickel-cadmium batteries, and is close to the current lithium iron phosphate commercial batteries. Moreover, the cost of zinc-nickel batteries is low, coupled with the excellent rate performance, low-temperature performance and absolute safety to the environment o...

Claims

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Application Information

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IPC IPC(8): H01M10/44H01M10/28
CPCH01M10/28H01M10/446Y02E60/10Y02P70/50
Inventor 武占耀许文冯忠厚楚力军
Owner 森克创能(天津)新能源科技有限公司