CN202977612U

CN202977612U - Integrated zinc-nickel single liquid flow battery

Info

Publication number: CN202977612U
Application number: CN2012206744929U
Authority: CN
Inventors: 赵鹏程; 程杰; 谢自立; 文越华; 徐艳; 曹高萍; 杨裕生
Original assignee: 63971 Troops of PLA
Current assignee: 63971 Troops of PLA
Priority date: 2012-12-10
Filing date: 2012-12-10
Publication date: 2013-06-05
Anticipated expiration: 2022-12-10

Abstract

The utility model discloses an integrated zinc-nickel single liquid flow battery. The integrated zinc-nickel single liquid flow battery consists of a galvanic pile which is formed by connecting a plurality of single batteries with one another, a shell, an electrolyte, liquid pumps and pipelines, wherein the liquid pumps and the pipelines are arranged outside the shell; the galvanic pile and the electrolyte are arranged in the shell; the electrolyte is driven by the liquid pumps to continuously flow between the shell and the galvanic pile through the pipelines; each single battery consists of a positive pole of a nickel electrode, a negative current collector for depositing zinc and the electrolyte which is a zinc-containing alkaline solution; and in the charging and discharging processes, the electrolyte is driven by the liquid pumps to continuously flow between the shell and the galvanic pile through the pipelines. The battery adopts an integrated structure to thoroughly solve the problem of liquid leakage in the galvanic pile, and meanwhile, the problems of blockage of channels in the galvanic pile, short circuit of a positive electrode and a negative electrode and the like caused by continuous accumulation of deposited zinc which falls off from the negative electrode in multiple times of charging and discharging are effectively solved. The integrated zinc-nickel single liquid flow battery has the advantages of simplicity for manufacturing process, liquid leakage prevention, blockage prevention, easiness for maintenance, low cost and the like.

Description

A kind of integral type zinc-nickel single flow battery

Technical field

The utility model relates to a kind of method and apparatus of New galvanic battery, specially refers to a kind of method and apparatus of integral type zinc-nickel single flow battery, belongs to chemical field, can be widely used in the fields such as electronics industry, communications and transportation, electric power, mining and metallurgy.

Background technology

Flow battery is that a kind of new electric energy stores and the Efficient Conversion device, have the characteristics such as scale is large, the life-span long, the low nontoxic environmental friendliness of cost, be suitable for storing as large-scale electric energy and the use of Efficient Conversion equipment in the occasions such as the non-wind power generation that is incorporated into the power networks, solar power generation.

Different from common all-vanadium flow battery, Chinese invention patent (publication number CN101127393A) has proposed a kind of novel zinc-nickel single flow battery, it is anodal that this battery adopts sintrered nickel, deposition zinc is negative pole, the alkaline solution that contains zinc is single electrolyte, there is no barrier film between electrode, have that manufacturing process is simple, cost is low, the cycle life advantages of higher.But in should inventing, when battery adopted the sandwich type structure of common flow battery or fuel cell, pile fastened by the screw rod on battery lead plate and nut clip, so the phenomenon of leakage is difficult to avoid.In addition, easily accumulate bottom pile from the deposition zinc that negative pole comes off, stop up the solution runner, comparatively difficulty is safeguarded in the cleaning of pile.

The utility model adopts integral structure, there is no outside fluid reservoir, pile and electrolyte all are among housing, thoroughly solved the leakage problem in the pile, simultaneously, the deposition zinc of effectively having avoided repeatedly in charge and discharge process coming off from negative pole causes the problems such as the obstruction of pile inner flow passage, positive and negative electrode short circuit in the constantly accumulation of pile bottom.This battery manufacturing process is simple, has liquid-leakage preventing, anti-clogging, easy care, low cost and other advantages.

Summary of the invention

The purpose of this utility model is to provide the method and apparatus of the integral type single flow battery of a kind of simple in structure, liquid-leakage preventing, anti-clogging, easy care.

The utility model battery comprises pile 1, housing 2, electrolyte 3 and outside liquid pump 4 and the pipeline 5 of 20～100 interconnected one-tenth of batteries monomer; Pile 1 and electrolyte 3 all are among housing 2, and electrolyte 3 constantly flows between housing 2 and pile 1 by pipeline 5 under liquid pump 4 promotes; Pile 1 is placed on pile frame 6, is fixed among housing 2 by dividing plate 7, and Positive Poles 8, negative pole pole 9 that the positive and negative electrode of pile 1 is corresponding with housing 2 tops are connected; Dividing plate 7 bottoms are a little less than pile 1 bottom, and its top immerses in electrolyte 3 pile 1 a little more than pile 1 top fully; There are the liquid bath of drawing 11 and mixed flow chamber 12 in housing 2 inside in the outside of dividing plate 7, draw liquid bath 11 and isolate fully by separatory dividing plate 13 with mixed flow chamber 12, and electrolyte 3 exports and is positioned at the bottom of drawing liquid bath 11, and electrolyte 3 entrances are positioned at 12 tops, mixed flow chamber; The both sides of mixed flow chamber 12 3～9 the not exclusively baffle plates 14 of isolation that distribute make electrolyte 3 enter mixed flow chamber 12 under liquid pump 4 effects and run into the rear reciprocating and turning-back of baffle plate 14, and turbulent flow occurs, and make electrolyte 3 flow trend evenly.

Safety exhaust 10 is arranged at the top at housing 2 of the present utility model.

The pile 1 that the utility model will assemble is in advance put into housing 2, with the positive and negative electrode of each battery cell in pile 1 respectively the positive and negative electrode pole 8 corresponding with housing 2 tops be weldingly connected; By the safety exhaust 10 openings injection electrolyte 3 at housing 2 tops, electrolyte 3 liquid levels cover dividing plate 7, and pile 1 is immersed in electrolyte 3 fully; Start liquid pump 4, draw electrolyte 3 from the bottom of drawing liquid bath 11, then 12 top pumps into from the mixed flow chamber; Electrolyte 3 runs into baffle plate 14 and stops after entering mixed flow chamber 12, after turning back several times, upwards flows from pile 1 bottom, is overflowed to flow back to by pile 1 top and draws liquid bath 11, and battery enters operating state.

The utility model has adopted integral structure, fluid reservoir and the pile of common flow battery are integrated, the shortcomings such as sandwich type structure pile complex process commonly used, easy-to-leak liquid have been overcome, the remarkable advantage such as have that manufacturing process is simple, liquid-leakage preventing, anti-clogging, easy care, cost are low.

Description of drawings

Fig. 1 is the structural representation of integral type zinc-nickel single flow battery

In figure: 1. pile, 2. housing, 3. electrolyte, 4. liquid pump, 5. pipeline, 6. pile frame, 7. dividing plate, 8. Positive Poles, 9. negative pole pole, 10. safety exhaust, 11. draw liquid bath, 12. mixed flow chambers, 13. separatory dividing plates, 14. baffle plates, 15. deposition zincs.

Embodiment

The utility model battery is comprised of pile 1, housing 2, electrolyte 3 and outside liquid pump 4 and the pipeline 5 of the 20 interconnected one-tenth of batteries monomer; Pile 1 is placed on pile frame 6, be fixed among housing 2 by dividing plate 7, in pile 1 positive and negative electrode of each battery cell respectively the positive and negative electrode pole 8 corresponding with housing 2 tops be weldingly connected; The liquid bath of drawing 11 and mixed flow chamber 12 are arranged in the outside of dividing plate 7, both isolate fully by separatory dividing plate 13, electrolyte 3 exports and is positioned at the bottom of drawing liquid bath 11, and electrolyte 3 entrances are positioned at the top of mixed flow chamber 12; 3 baffle plates 14 of not exclusively isolating of both sides distribution of mixed flow chamber 12.

Safety top vent valve opening by housing 2 injects electrolyte, and electrolyte 3 liquid levels cover baffle plate 7, and pile 1 is immersed in electrolyte 3 fully, load onto safety exhaust, and pile is in semi-closed state; Start liquid pump 4, draw electrolyte 3 from the bottom of drawing liquid bath 11, then 12 top pumps into from the mixed flow chamber; Electrolyte 3 runs into baffle plate 14 and stops after entering mixed flow chamber 12, and after turning back several times, trend evenly upwards flows from pile 1 bottom, passes pile 1 inner flow passage, is overflowed to flow back to by pile 1 top and draws liquid bath 11, and battery enters operating state.

During charging, the zinc ion in electrolyte 3 is reduced on negative pole, generates the metallic zinc deposition; During discharge, the deposition zinc on negative pole is oxidized, and the dissolving of metallic zinc occurs.In charging process when the metallic zinc deposition is larger, deposition zinc and electrode surface adhesion descend, come off, because density is larger, and be subject to the electrolyte flow impact, this part deposition zinc breaks away from the runner of pile 1, falls the bottom of battery container 2, does not affect electrolyte 3 flowing in pile 1 inside.In addition, due to the housing 2 that has adopted integral structure, there is not the problem of leakage in battery.

Claims

1. an integral type zinc-nickel single flow battery, is characterized in that this battery comprises pile (1), housing (2), electrolyte (3) and outside liquid pump (4) and the pipeline (5) of 20～100 interconnected one-tenth of batteries monomer; Pile (1) and electrolyte (3) all are among housing (2), and electrolyte (3) constantly flows between housing (2) and pile (1) by pipeline (5) under liquid pump (4) promotes; Pile (1) is placed on pile frame (6), be fixed among housing (2) by dividing plate (7), Positive Poles (8), negative pole pole (9) that the positive and negative electrode of pile (1) is corresponding with housing (2) top are connected; The bottom of dividing plate (7) is a little less than the bottom of pile (1), and its top immerses in electrolyte (3) pile (1) a little more than the top of pile (1) fully; Housing (2) inside, the liquid bath of drawing (11) and mixed flow chamber (12) are arranged in the outside of dividing plate (7), drawing liquid bath (11) isolates by separatory dividing plate (13) fully with mixed flow chamber (12), electrolyte (3) outlet is positioned at the bottom of drawing liquid bath (11), and electrolyte (3) entrance is positioned at the top of mixed flow chamber (12); The both sides distribution 3～9 of mixed flow chamber (12) is the baffle plates (14) of isolation not exclusively, make electrolyte (3) reciprocating and turning-back after entering mixed flow chamber (12) under liquid pump (4) effect to run into baffle plate (14), turbulent flow occurs, and makes electrolyte (3) flow trend evenly.

2. integral type zinc-nickel single flow battery according to claim 1, is characterized in that: at the top of housing (2), safety exhaust (10) is arranged.