KR20100101311A - Recycling method for degraded the performance of the battery in forklift - Google Patents

Recycling method for degraded the performance of the battery in forklift Download PDF

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KR20100101311A
KR20100101311A KR20090019730A KR20090019730A KR20100101311A KR 20100101311 A KR20100101311 A KR 20100101311A KR 20090019730 A KR20090019730 A KR 20090019730A KR 20090019730 A KR20090019730 A KR 20090019730A KR 20100101311 A KR20100101311 A KR 20100101311A
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battery
electrolyte
performance
battery cell
forklift
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KR101102456B1 (en
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윤대성
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윤대성
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/54—Reclaiming serviceable parts of waste accumulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/24—Electrical devices or systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/06—Lead-acid accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4242—Regeneration of electrolyte or reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/484—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring electrolyte level, electrolyte density or electrolyte conductivity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/84—Recycling of batteries or fuel cells

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • General Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

PURPOSE: A recycling method for a degraded battery in a forklift is provided to reduce the replacement cost of the battery, and to prevent the environmental contamination. CONSTITUTION: A recycling method for a degraded battery in a forklift comprises the following steps: testing the voltage from before a changing process, and after the charging process of each battery cell composing the battery, and selecting(101); and recycling the selected battery cell. The selecting process comprises a step of checking the residual voltage of the selected battery cell(102), and a step of checking the voltage after charging(105).

Description

지게차의 성능이 저하된 배터리 재생방법{RECYCLING METHOD FOR DEGRADED THE PERFORMANCE OF THE BATTERY IN FORKLIFT}Battery recycling method forklift deteriorated {RECYCLING METHOD FOR DEGRADED THE PERFORMANCE OF THE BATTERY IN FORKLIFT}

본 발명은 지게차의 성능이 저하된 배터리 재생방법에 관한 것으로서, 보다 상세하게는 지게차에 사용되는 배터리를 구성하는 다수개의 배터리 셀을 각각 별도로 검사한 후 재생작업을 진행함으로써, 성능이 저하된 배터리의 재생효율이 향상될 수 있도록 하는 지게차의 성능이 저하된 배터리 재생방법에 관한 것이다.The present invention relates to a method of regenerating a battery in which the performance of a forklift is degraded, and more particularly, a plurality of battery cells constituting a battery used in the forklift are separately inspected and then regenerated to perform a regeneration operation. The present invention relates to a battery regeneration method in which the performance of a forklift is degraded to improve regeneration efficiency.

지게차는 화물을 들어올리고 내리거나 또는 이것을 제한된 공간 내에서 요구하는 위치로 운반하는데 효과적으로 이용되는 것으로, 산업 전반에 걸쳐 널리 사용되고 있다.Forklift trucks are widely used throughout the industry to effectively lift and unload cargo or transport it to a required position within a limited space.

지게차는 보통 도 1에 도시된 바와 같이 차체(10)의 상부후방에 배터리 격납실(20)이 구성되어 있다. 배터리 격납실(20)은 일측면에 배터리(70)의 출입이 가능하도록 출입구(27)가 형성되어 있으며, 그 대응면은 개방되어 하단에 배터리 격납실(20)로 진입하는 배터리(70)의 진입위치를 제한하는 스토퍼(22)가 횡방향으로 설치된다. 배터리 격납실(20)의 내부 바닥에는 배터리(70)를 받치는 복수의 가이드 롤러(32)를 갖춘 롤러 트레이(30)가 설치된다. In the forklift, as shown in FIG. 1, the battery compartment 20 is formed in the upper rear portion of the vehicle body 10. The battery compartment 20 has an entrance 27 formed at one side thereof to allow the battery 70 to enter and exit, and a corresponding surface of the battery compartment 20 is opened to enter the battery compartment 20 at a lower end thereof. A stopper 22 for limiting the entry position is provided in the transverse direction. A roller tray 30 having a plurality of guide rollers 32 supporting the battery 70 is installed at the inner bottom of the battery compartment 20.

출입구(27)의 하단에는 배터리 격납실(20)로 진입하는 배터리(70)가 롤러트레이(30)의 상부로 용이하게 올라가게 하기위하여 가이드롤러(32)보다 낮은 높이를 갖는 가이드바(24)가 횡방향으로 설치되어 있다.Guide bar 24 having a lower height than the guide roller 32 in order to facilitate the battery 70 entering the battery compartment 20 to the top of the roller tray 30 at the lower end of the entrance 27 Is installed in the transverse direction.

배터리 격납실(20)의 상부에는 운전석(46)이 설치되는 후드조립체(40)가 회전가능하게 고정된다. 후드조립체(40)는 배터리 격납실(20)에 힌지(42)결합되는 것으로서, 개방시에 배터리 격납실(20)의 상부를 개방하게 된다. 후드조립체(40)의 전방에는 개방시 캐빈스테이(60)에 일체로 형성되는 지지편(62)의 걸림구멍(62a)에 걸게되는 고리(44)가 형성되어 후드조립체(40)의 개방상태를 유지시키게 된다. 또한, 후드조립체(40)에는 배터리 격납실(20)에 수납된 배터리(70)의 이탈을 제한하는 이탈방지바(50)가 설치된다. 이탈방지바(50)는 고중량의 배터리(70)의 이탈을 제한하여야 하므로 비교적 높은 굽힘강도를 갖는 예컨대, 사각중공단면을 갖는 사각봉등의 각봉으로 구성하는 것이 바람직하다.The hood assembly 40 in which the driver's seat 46 is installed is rotatably fixed to the upper portion of the battery compartment 20. The hood assembly 40 is hinged 42 to the battery compartment 20, and opens the upper portion of the battery compartment 20 when opened. The front of the hood assembly 40 is formed with a ring 44 to be engaged with the catching hole 62a of the support piece 62 which is integrally formed in the cabin stay 60 at the time of opening, so as to open the hood assembly 40. Will be maintained. In addition, the hood assembly 40 is provided with a separation prevention bar 50 for limiting the separation of the battery 70 accommodated in the battery compartment 20. The anti-separation bar 50 should be limited to the detachment of the heavy weight battery 70, so it is preferable to configure each bar such as a rectangular bar having a relatively high bending strength, for example, a rectangular hollow cross section.

상기와 같이 구성된 지게차는 도시된 바와 같이 그 동력원으로 전기를 이용하고 있고, 전원으로는 고정전원을 이용할 수 없는 관계로 일정한 전력을 보유하는 배터리(70)를 사용하고 있다. 배터리(70)는 다수개의 배터리셀(71)이 직렬로 연결되어 사용되며 재충전하여 반복적으로 사용한다. 일회충전에 가능한 장시간 작업을 실시할 수 있도록 대략 500kg 이상의 고중량으로 제작된다.The forklift configured as described above uses electricity as its power source, as shown, and uses a battery 70 having a constant power, since a fixed power source cannot be used as the power source. The battery 70 is used by a plurality of battery cells 71 are connected in series and recharged repeatedly. It is manufactured with a heavy weight of about 500kg or more to perform the work as long as possible once.

상기와 같이 사용되는 지게차의 배터리(70)는 충전과 방전이 거듭됨에 따라 수소가스가 발생되고 화학반응시 발생되는 열로 인해 증류수액의 증발이 발생되어 외부 공기에 노출된 납판이 산화되고 경화됨과 아울러 전해질의 비중이 변화됨으로 서 배터리 성능이 저하된다.As the battery 70 of the forklift used as described above is repeatedly charged and discharged, hydrogen gas is generated and evaporation of distilled water is generated due to heat generated during chemical reactions, and the lead plate exposed to the outside air is oxidized and cured. Battery performance decreases as the specific gravity of the electrolyte changes.

또한, 지게차의 배터리(70)는 다수개의 배터리셀(71)로 이루어지므로 한개의 배터리셀(71)이라도 불량인 상태가 되면 전체 배터리(70)의 성능이 저하된다. 이를 해결하기 위해 재생하거나 교체하는 경우, 보통 12개에서 24개 정도로 짝을 이루는 배터리셀(71)로 이루어진 배터리(70) 전체를 한꺼번에 재생하거나 교체해야 하므로 많은 비용이 소요되는 문제점이 있다.In addition, since the battery 70 of the forklift is composed of a plurality of battery cells 71, when one battery cell 71 is in a bad state, the performance of the entire battery 70 is reduced. In order to solve this problem, there is a problem in that it costs a lot of money because it is necessary to regenerate or replace the entire battery 70, which is usually composed of 12 to 24 paired battery cells 71, all at once.

상기와 같은 점을 감안하여 안출한 본 발명의 목적은 지게차의 배터리의 성능이 저하되면 배터리를 구성하는 각각의 배터리셀을 별도로 검사한 후에 재생할 수 있는 배터리셀은 재생하여 사용하고 재생이 불가한 배터리셀만을 교체하는 방법을 사용함으로써, 배터리의 성능을 향상시킴과 동시에 재생 비용을 절감할 수 있는 지게차의 성능이 저하된 배터리 재생방법을 제공함에 있다.The object of the present invention devised in view of the above point is that when the performance of the battery of the forklift is degraded, the battery cells that can be reproduced after separately inspecting each battery cell constituting the battery are used for reproduction and cannot be reproduced. By using a method of replacing only a cell, it is possible to improve a battery performance and at the same time provide a battery regeneration method in which the performance of a forklift truck which can reduce a regeneration cost.

상기와 같은 본 발명의 목적을 달성하기 위한 지게차의 성능이 저하된 배터리 재생방법은 지게차의 성능이 저하된 배터리를 재생하는 방법에 있어서, 수집된 성능이 저하된 배터리를 구성하는 각 배터리 셀에 대해 개별적으로 충전 전후의 전압을 비교하여 선별하는 선별단계; 및 선별된 각 배터리 셀을 재생하는 재생단계; 로 이루어진다.The battery regeneration method in which the performance of the forklift is degraded to achieve the object of the present invention as described above, in the method of regenerating the battery in which the performance of the forklift is degraded, for each battery cell constituting the battery having the reduced performance A sorting step of selecting and comparing the voltages before and after individually charging; And a reproducing step of reproducing each selected battery cell. .

바람직하게는, 상기 선별단계는 수집된 배터리 셀의 잔여 전압을 체크하는 1 차검사단계; 및 충전을 완료한 후 전압을 체크하는 2차검사단계; 를 포함하여 상기 2차검사단계에서 충전이 이루어지지 않는 상기 배터리 셀은 일시적으로 고전압을 가하여 충전을 완료하며, 상기 1차검사단계에서 체크된 전압과 상기 2차검사단계에서 체크된 전압의 차이를 비교하여 폐기 및 재생여부를 판단한다.Preferably, the sorting step includes a first inspection step of checking a residual voltage of the collected battery cells; And a second inspection step of checking the voltage after completing the charging; The battery cells that are not charged in the secondary inspection step, including a temporary, are temporarily charged with high voltage to complete the charging, and the difference between the voltage checked in the primary inspection step and the voltage checked in the secondary inspection step is determined. Compare and determine whether it is discarded or regenerated.

바람직하게는, 상기 재생단계는 각 배터리 셀에 충진된 전해액의 비중 및 혼탁도를 각 배터리 셀 마다 개별적으로 검사하는 1차전해액검사단계; 상기 전해액검사단계에서 전해액의 비중 및 혼탁도가 불량인 경우 전해액을 교체하는 1차전해액교체단계; 전해액이 양호하거나 전해액을 교체한 각 배터리 셀의 전극판에 부착된 황산염을 제거하는 황산염제거단계; 황산염제거 후, 각 배터리 셀에 충진된 전해액의 비중 및 혼탁도를 각 배터리 셀 마다 개별적으로 검사하는 2차전해액검사단계; 상기 2차전해액검사단계에서 전해액의 비중 및 혼탁도가 불량인 경우 전해액을 교체하는 2차전해액교체단계; 배터리 셀을 충전하는 충전단계; 충전이 완료된 배터리 셀의 부하 유지여부에 따른 성능을 검사하여 폐기여부를 판단하는 성능검사단계; 및 상기 성능검사단계에서 배터리 셀의 부하 유지능력이 양호하면 보존제를 첨가하는 재생완료단계; 를 순차적으로 실시하여 배터리를 구성하는 배터리 셀을 개별적으로 검사하고 재생한다.Preferably, the regeneration step includes a primary electrolyte test step of individually inspecting the specific gravity and turbidity of the electrolyte filled in each battery cell for each battery cell; A first electrolyte replacement step of replacing the electrolyte when the specific gravity and turbidity of the electrolyte are poor in the electrolyte inspection step; Sulfate removal step of removing the sulfate attached to the electrode plate of each battery cell that the electrolyte is good or replace the electrolyte; After the removal of the sulfate, the secondary electrolyte test step of inspecting the specific gravity and turbidity of the electrolyte filled in each battery cell individually for each battery cell; A secondary electrolyte replacement step of replacing the electrolyte when the specific gravity and turbidity of the electrolyte are poor in the secondary electrolyte test step; A charging step of charging the battery cell; A performance test step of determining whether to dispose of the battery by checking performance according to whether or not the battery cell is fully loaded; And a regeneration completion step of adding a preservative if the load holding ability of the battery cell is good in the performance test step. Are sequentially performed to individually inspect and reproduce the battery cells constituting the battery.

바람직하게는, 상기 성능검사단계는 배터리 용량에 준한 소정의 Ah에서 4시간 내지 5시간 방전한 후에 전압이 1.75V 이상을 유지하는지 여부를 판단한다.Preferably, the performance test step determines whether the voltage is maintained at 1.75V or more after 4 hours to 5 hours discharge at a predetermined Ah based on the battery capacity.

바람직하게는, 상기 황산염제거단계는 100시간 정도 저전류를 공급하여 배터리 셀 내부의 극판에 부착된 황산염을 제거하는 저전류공급단계; 로 이루어진다.Preferably, the sulphate removal step is a low current supply step of supplying a low current for about 100 hours to remove the sulfate attached to the pole plate inside the battery cell; .

이와같이 본 발명에 의한 지게차의 성능이 저하된 배터리 재생방법은 지게차 배터리를 각각의 배터리 셀을 개별적으로 분리하여 검사하고 재생함으로써 성능이 저하된 배터리의 재생 및 교체 비용을 절감하는 효과가 있다.As described above, the battery regeneration method in which the performance of the forklift truck is degraded has the effect of reducing the regeneration and replacement cost of the degraded battery by separately inspecting and regenerating each battery cell.

또한, 배터리를 구성하는 각각의 배터리 셀은 개별적으로 재생하거나 교체작업을 실시하므로 배터리 전체를 교체하던 기존의 방법에 비하여 폐기처리되는 배터리 셀의 양을 절감하여 성능이 저하된 배터리 셀의 처리에 따라 발생되는 환경오염을 방지하고 자원이 절약되는 효과가 있다.In addition, since each battery cell constituting the battery is individually regenerated or replaced, the amount of battery cells that are disposed of is reduced compared to the existing method of replacing the entire battery. It prevents environmental pollution and saves resources.

이하, 본 발명의 바람직한 일 실시예인 지게차의 성능이 저하된 배터리 재생방법을 첨부된 도면을 참조하여 보다 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, a method of regenerating a battery having a reduced performance of a forklift, which is a preferred embodiment of the present invention, will be described in detail.

도 2는 본 발명의 바람직한 일 실시예인 지게차의 성능이 저하된 배터리 재생방법을 도시한 플로우차트이다.2 is a flowchart illustrating a battery regeneration method in which the performance of a forklift is reduced according to an exemplary embodiment of the present invention.

도시된 바와 같이 지게차의 성능이 저하된 배터리 재생방법은 수집된 지게차의 성능이 저하된 배터리를 분해하여 각 배터리 셀에 대해 개별적으로 충전 전후의 전압을 비교하여 선별하는 선별단계(101)와 선별된 각 배터리 셀을 개별적으로 재생하는 재생단계로 이루어진다.As shown in the drawing, a battery regeneration method in which the performance of the forklift is degraded is screened by a sorting step 101 for disassembling the collected battery for which the performance of the forklift is degraded and comparing the voltages before and after charging individually for each battery cell. A playback step is performed in which each battery cell is individually reproduced.

상기 선별단계(101)는 수집된 배터리 셀의 잔여 전압을 체크하는 1차검사단계와 충전을 완료한 후 전압을 체크하는 2차검사단계로 이루어지고, 1차검사단계에서 체크된 전압과 2차단계에서 체크된 전압을 비교하여 일정량 이상 차이가 나면 폐기하고 그렇지 않으면 재생단계를 진행한다. 1차검사단계에서 잔여 전압은 부하를 걸어 방전을 이룬 상태를 말한다. 또한 2차검사단계에서 충전이 제대로 이루어지지 않는 경우에는 배터리 셀에 일시적으로 고전압을 가하여 충전을 완료한 후 전압을 체크하는 방법을 사용하기도 한다.The screening step 101 comprises a first test step of checking the remaining voltage of the collected battery cells and a second test step of checking the voltage after the charging is completed, and the voltage and the secondary checked in the first test step Compare the voltage checked in the step and discard if there is a difference over a certain amount, otherwise proceed with the regeneration step. In the first test stage, the residual voltage refers to a state in which a discharge is applied under a load. In addition, when charging is not performed properly in the second inspection step, a method of temporarily applying a high voltage to the battery cell to check the voltage after completing the charging may be used.

상기 재생단계는 1차전해액검사단계(102)와, 1차전해액검사단계(102)에서 전해액이 불량인 경우 전해액을 교체하는 1차전해액교체단계(103)와, 황산염제거단계(104)와, 2차전해액검사단계(105)와, 2차전해액검사단계(105)에서 전해액이 불량인 경우 전해액을 교체하는 2차전해액교체단계(106)와, 충전단계(107)와 성능검사단계(108)를 거쳐 폐기단계(109)를 실시하거나 재생완료단계(110)를 실시하여 재생을 완료한다.The regeneration step is the first electrolyte test step 102, the first electrolyte test step 102, if the electrolyte is defective in the first electrolyte replacement step 103 to replace the electrolyte solution, the sulfate removal step 104, Second electrolyte test step 105, the second electrolyte test step 105, if the electrolyte is defective in the secondary electrolyte replacement step 106 to replace the electrolyte, the filling step 107 and the performance test step 108 Through the disposal step 109 or the regeneration completion step 110 is carried out to complete the regeneration.

상기 1차, 2차전해액검사단계(102, 105)는 전해액의 혼탁도를 육안으로 검사하여 이물질이 많이 섞여 있는 상태이거나, 26도씨에서의 비중이 1.28 이하이면 불량으로 처리한다. 1차전해액검사단계(102)에서 전해액이 양호하면 곧바로 황산염제거단계(104)를 진행하고 불량하면 전해액을 교체한 후 황산염제거단계(104)를 실시한다.In the first and second electrolyte test step (102, 105), the turbidity of the electrolyte is visually inspected, and a lot of foreign matter is mixed, or if the specific gravity at 26 ° C is treated as poor. In the first electrolyte test step 102, if the electrolyte is good, the sulphate removal step 104 is performed immediately. If the electrolyte is bad, the sulphate removal step 104 is performed after replacing the electrolyte solution.

상기 황산염제거단계(104)는 3~5일간 약 100시간 동안 저전류를 공급하여 젤라틴과 반응하도록 하여 황산염을 제거하는 저전류공급단계로 이루어진다. The sulfate removal step 104 is a low current supply step of removing the sulfate by supplying a low current for about 100 hours for 3 to 5 days to react with gelatin.

황산염 제거가 완료되면 2차전해액검사(105)를 실시한다. 이때 전해액이 양호하면 곧바로 충전단계(107)를 진행하고, 불량하면 전해액을 교체한 후 충전단계(107)를 진행한다.After the removal of sulphate, secondary electrolyte test 105 is performed. In this case, if the electrolyte is good, the charging step 107 is immediately performed. If the electrolyte is bad, the electrolyte is replaced and the charging step 107 is performed.

충전이 완료된 후 진행되는 성능검사단계(108)는 배터리 용량에 따라서 그에 준한 Ah, 즉 500Ah 정도의 부하를 건 상태에서 4시간 내지 5시간정도 방전한 후에 남아있는 전압이 1.75V 이상이면 양호한 것으로 판단하고 그 이하이면 불량한 것으로 판단하여 폐기(109) 단계를 진행한다. 기존 배터리에는 폐기된 배터리 셀 대신에 새 배터리 셀로 교체한다.The performance test step 108, which is conducted after the charging is completed, is determined to be good if the remaining voltage is 1.75V or more after 4 to 5 hours of discharging according to the battery capacity according to Ah, that is, a load of about 500 Ah. If less than that, it is determined to be bad and proceeds to the disposal step (109). Existing batteries are replaced with new battery cells instead of discarded battery cells.

성능검사단계(108)에서 배터리 셀의 상태가 양호하다고 판단되면 보존제(?)를 첨가하여 재생을 완료하는 재생완료단계(110)를 진행한다. 재생이 완료된 배터리 셀은 기존의 배터리에 삽입한 후 충전하여 지게차에 장착함으로써 배터리의 재사용이 가능하게 되는 것이다.If it is determined that the state of the battery cell is good in the performance test step 108, the regeneration completion step 110 to complete the regeneration by adding a preservative (?) Is performed. After the regeneration is completed, the battery cell is inserted into an existing battery, charged, and mounted on a forklift, so that the battery can be reused.

이와 같이 본 발명에 의한 지게차의 성능이 저하된 배터리 재생방법은 배터리를 구성하는 각각의 배터리 셀을 분리하여 개별적으로 선별한 후, 개별적으로 재생하여 배터리를 구성하는 다수개의 배터리 셀 중에서 재생이 가능한 배터리 셀은 재생하여 사용하고, 재생이 불가한 배터리 셀은 새로운 배터리 셀로 교체함으로써, 지게차의 배터리 교체비용이 절감되는 것이다.As described above, in the battery regeneration method of which the performance of the forklift is degraded, the battery can be regenerated among a plurality of battery cells constituting the battery by separating and individually selecting each battery cell constituting the battery. By regenerating and using the cell, and replacing the non-renewable battery cell with a new battery cell, the battery replacement cost of the forklift is reduced.

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

도 1은 종래 구조의 지게차 배터리를 도시한 사시도,1 is a perspective view showing a forklift battery having a conventional structure;

도 2는 본 발명의 바람직한 일 실시예인 지게차의 성능이 저하된 배터리 재생방법을 도시한 플로우차트.2 is a flowchart illustrating a battery regeneration method in which the performance of a forklift is reduced according to an exemplary embodiment of the present invention.

**도면의 주요 부분에 대한 부호의 설명**** Description of the symbols for the main parts of the drawings **

101 : 선별단계 102 : 1차전해액검사단계 101: screening step 102: the first electrolyte test step

103 : 1차전해액교체단계 104 : 황산염제거단계 103: first electrolyte replacement step 104: sulfate removal step

105 : 2차전해액검사단계 106 : 2차전해액교체단계 105: second electrolyte test step 106: second electrolyte replacement step

107 :충전단계 108 : 성능검사단계 107: charging step 108: performance test step

109 : 폐기단계 110 : 재생완료단계 109: disposal step 110: regeneration completion step

Claims (5)

지게차의 성능이 저하된 배터리를 재생하는 방법에 있어서, In the method of regenerating a battery in which the performance of the forklift is degraded, 수집된 성능이 저하된 배터리를 구성하는 각 배터리 셀에 대해 개별적으로 충전 전후의 전압을 비교하여 선별하는 선별단계; 및 A sorting step of selecting and comparing voltages before and after individually charging each battery cell constituting the collected battery with reduced performance; And 선별된 각 배터리 셀을 재생하는 재생단계; 로 이루어지는 것을 특징으로 하는 지게차의 성능이 저하된 배터리 재생방법.A reproducing step of reproducing each selected battery cell; Battery forklift performance is reduced, characterized in that consisting of. 제 1항에 있어서, The method of claim 1, 상기 선별단계는 The screening step 수집된 배터리 셀의 잔여 전압을 체크하는 1차검사단계; 및 A first inspection step of checking a residual voltage of the collected battery cells; And 충전을 완료한 후 전압을 체크하는 2차검사단계; 를 포함하여 A second inspection step of checking a voltage after completing charging; Including 상기 2차검사단계에서 충전이 이루어지지 않는 상기 배터리 셀은 일시적으로 고전압을 가하여 충전을 완료하며, 상기 1차검사단계에서 체크된 전압과 상기 2차검사단계에서 체크된 전압의 차이를 비교하여 폐기 및 재생여부를 판단하는 것을 특징으로 하는 지게차의 성능이 저하된 배터리 재생방법.The battery cells which are not charged in the secondary inspection step are temporarily charged with high voltage to complete the charging, and are discarded by comparing the difference between the voltage checked in the primary inspection step and the voltage checked in the secondary inspection step. And regenerating the battery, wherein the performance of the forklift is reduced. 제 1항 또는 제 2항에 있어서, The method according to claim 1 or 2, 상기 재생단계는 The regeneration step 각 배터리 셀에 충진된 전해액의 비중 및 혼탁도를 각 배터리 셀 마다 개별 적으로 검사하는 1차전해액검사단계;A first electrolyte test step of individually inspecting the specific gravity and turbidity of the electrolyte filled in each battery cell for each battery cell; 상기 전해액검사단계에서 전해액의 비중 및 혼탁도가 불량인 경우 전해액을 교체하는 1차전해액교체단계;A first electrolyte replacement step of replacing the electrolyte when the specific gravity and turbidity of the electrolyte are poor in the electrolyte inspection step; 전해액이 양호하거나 전해액을 교체한 각 배터리 셀의 전극판에 부착된 황산염을 제거하는 황산염제거단계;Sulfate removal step of removing the sulfate attached to the electrode plate of each battery cell that the electrolyte is good or replace the electrolyte; 황산염제거 후, 각 배터리 셀에 충진된 전해액의 비중 및 혼탁도를 각 배터리 셀 마다 개별적으로 검사하는 2차전해액검사단계;After the removal of the sulfate, the secondary electrolyte test step of inspecting the specific gravity and turbidity of the electrolyte filled in each battery cell individually for each battery cell; 상기 2차전해액검사단계에서 전해액의 비중 및 혼탁도가 불량인 경우 전해액을 교체하는 2차전해액교체단계;A secondary electrolyte replacement step of replacing the electrolyte when the specific gravity and turbidity of the electrolyte are poor in the secondary electrolyte test step; 배터리 셀을 충전하는 충전단계;A charging step of charging the battery cell; 충전이 완료된 배터리 셀의 부하 유지여부에 따른 성능을 검사하여 폐기여부를 판단하는 성능검사단계; 및 A performance test step of determining whether to dispose of the battery by checking performance according to whether or not the battery cell is fully loaded; And 상기 성능검사단계에서 배터리 셀의 부하 유지능력이 양호하면 보존제를 첨가하는 재생완료단계; 를 순차적으로 실시하여 배터리를 구성하는 배터리 셀을 개별적으로 검사하고 재생하는 것을 특징으로 하는 지게차의 성능이 저하된 배터리 재생방법.A regeneration completion step of adding a preservative if the load holding capability of the battery cell is good in the performance test step; The battery regeneration method of the performance of the forklift, characterized in that to sequentially perform the inspection and regeneration of the battery cells constituting the battery individually. 제 3항에 있어서, The method of claim 3, wherein 상기 성능검사단계는 The performance test step 배터리 용량에 준한 소정의 Ah에서 4시간 내지 5시간 방전한 후에 전압이 1.75V 이상을 유지하는지 여부를 판단하는 것을 특징으로 하는 지게차의 성능이 저하된 배터리 재생방법.4. A method for regenerating a battery with reduced performance of a forklift, characterized in that it is determined whether or not the voltage is maintained at 1.75 V or more after discharge for 4 to 5 hours at a predetermined Ah based on battery capacity. 제 3항에 있어서, The method of claim 3, wherein 상기 황산염제거단계는 100시간 정도 저전류를 공급하여 배터리 셀 내부의 극판에 부착된 황산염을 제거하는 저전류공급단계; 로 이루어지는 것을 특징으로 하는 지게차의 성능이 저하된 배터리 재생방법.The sulphate removal step may include a low current supply step of supplying a low current for about 100 hours to remove sulphate attached to the pole plate inside the battery cell; Battery forklift performance is reduced, characterized in that consisting of.
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KR20180081653A (en) 2017-01-06 2018-07-17 (주)엠큐어 Injector of Gas and Drug
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