# US 9,040,857 B2 · Terminal contacting part included in a jig for charging and discharging a secondary battery and the jig including the same

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- Number: US 9,040,857 B2
- Document ID: US9040857B2
- Status: Granted
- Kind: B2
- Application number: 13/234,743
- Filed: 2011-09-16
- Published: 2012-03-22
- Granted: 2015-05-26
- Earliest claimed: 2010-09-17
- Assignees: LG Chem, Ltd.
- Applicants: Seung Yeob Park; Ho Sub Jung; Young Joon Shin
- Inventors: Seung Yeob Park; Ho Sub Jung; Young Joon Shin
- Web page: https://patentgrep.com/patent/US9040857B2

## CPC

- H01R 13/24: resilient; resiliently-mounted
- H01M 10/44: Methods for charging or discharging (circuits for charging H02J7/00)
- H01R 4/489: {spring force increased by screw, cam, wedge, or other fastening means}
- H01R 4/5008: {using rotatable cam}
- G01R 31/364: Battery terminal connectors with integrated measuring arrangements
- Y02E 60/10: Energy storage using batteries
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A terminal contacting part includes in a jig for charging and discharging a secondary battery and a jig including the terminal contacting part. The terminal contacting part has a conductive unit for contacting an electrode terminal and conducting thereto and a pressing unit for pressing the electrode terminal for the conductive unit to be in tight contact with an electrode lead of a secondary battery. A compressing plate to be in contact with an electrode terminal includes a pad of dielectric-elastic material.

## Claims

### Claim 1

A battery fixing part included in a jig for charging and discharging a secondary battery, comprising:
a conductive unit for contacting an electrode lead of the secondary battery to flow current therein;
a pressing unit for pressing the electrode lead for the conductive unit to be in tight contact with the electrode lead of the secondary battery; and
a pair of fixed blocks installed on an upper surface of a main body and disposed side by side at an interval,
wherein each fixed block includes a fixed hole,
wherein the pressing unit comprises a pressing bar for operating the pressing unit, a compressing plate to contact with the electrode lead, and a lifting unit connecting the pressing bar and the compressing plate, rotation axes protruding from the pressing bar, and the pressing bar is operated for the compressing plate to descend vertically to be in tight contact with the electrode lead in all area of the compressing plate with a same pressure simultaneously,
wherein each of the rotation axes is inserted into one of the fixed holes and is rotatably coupled to the fixed block,
wherein the pressing bar is pivotally rotated around a horizontal rotation axis disposed on a center of the pressing bar,
wherein the lifting unit is connected to the pressing bar by a pin and is moved in the vertical direction by pivoting motion of the pressing bar, and
wherein the compressing plate is moved vertically in a direction depending on a vertical movement of the lifting unit.

### Claim 2 (depends on 1)

The battery fixing part of claim 1, wherein the pressing unit is supported elastically upward by an elastic member.

### Claim 3 (depends on 1)

The battery fixing part of claim 1, which further comprises a fixing device for fixing a contacting state of the electrode lead of the secondary battery and the conductive unit, which is formed through an operation of the pressing unit.

### Claim 4 (depends on 1)

The battery fixing part of claim 1, wherein the battery fixing part comprises a contact-point device for connecting the conductive unit and a charger and discharger.

### Claim 5 (depends on 1)

The battery fixing part of claim 1, wherein the compressing plate comprises an upper conductive part of metal conductive member at a lower surface thereof and the upper conductive part is connected to the contact-point device to be connected to the charger and discharger.

### Claim 6 (depends on 1)

The battery fixing part of claim 1, wherein a pressure of 40-60 kgf is applied on the compressing plate so that the compressing plate descends vertically to be in contact with the electrode lead through an operation of the pressing bar.

### Claim 7 (depends on 1)

The battery fixing part of claim 1, wherein a pressure of 50 kgf is applied on the compressing plate so that the compressing plate descends vertically to be in contact with the electrode lead through an operation of the pressing bar.

### Claim 8 (depends on 1)

A jig for evaluating a performance of the secondary battery comprising the battery fixing part according to claim 1.

### Claim 9 (depends on 8)

A device for charging and discharging the secondary battery comprising the jig according to claim 8.

### Claim 10 (depends on 9)

The device of claim 9, wherein the device is applied to the secondary battery in which electrode leads are protrude to one direction or to opposite directions.