TWS Earphone Coin Cell

Competitiveness of GP Coin Cell

 

Structure Design

 

Structure with high security and efficient use of space makes cell capacity higher than domestic peer corporation.

Material Selection

Advanced materials technology platform satisfies the requirements of 3~5C fast charge and 4.35V high voltage performance.

Great Power earphone battery Capacity

Production capacity of 13000 pcs/day can meet the demand of big deals.

Automatic Equipment

 

Advanced automatic production from large-scale screw feeder system to fully automatic screening system in packaging can ensure product consistency effectively

 

Advanced Quality Management System

The mature supporting TS16949 system helps quality control of products throughout the whole process.

Manufacturing Traceability System

A smart factory's information platform capable of human-machine collaboration can realize real-time quality data collection through the production process, in-time control and post hoc analysis.

Six Patents of GP Coin Cell

Patent 1 (A coin cell case structure, coin cell and electrical equipment)

This patent is undergoing PCT process followed by entering the relevant countries for product sales.

Patent 2 (A coin lith-ion cell positive case)

The patent is to prevent the cell from bulging, deforming and corroding positive case.

Patent 3 (A coin lith-ion cell negative case)

The is the first patent in China to use a two-piece component to make coin lith-ion cell. Vatar uses a three-piece component.

Patent 4 (A method for producing coin lith-ion cell having thick electrode)

This is China's first patent with electrode thickness greater than 0.2 mm

Patent 5 (A Li-MnO2  rechargable coin cell negative case and cell)

This is the first Li-MnO2 rechargable coin cell patent in China

Patent 6 (A coin lith-ion cell )

This is the earliest laminated coin lith-ion cell patent in China

 

earphone battery Description

Model	ICR1254	ICR1265	ICR1454	ICR1654	ICR9440	ICR1054	ICR1240	ICR1440
Nominal Voltage(V）	3.7V	3.7V	3.7V	3.7V	3.7V	3.7V	3.7V	3.7V
AC/IR (mΩ)	≤550	≤500	≤500	≤450	≤1000	≤700	≤700	≤600
Capacity(C3)（mAh）	60	70	85	110	25	35	45	50
Continuous Discharge	1C
Continuous Charge.	2C
Cycle life	＞500Times
Workable temperature Charge(℃)	0 to 45℃
Workable temperature Discharge(℃)	-20 to 60℃

Great Power earphone battery Size

Model	Diameter D/mm	Height H/mm
ICR7842	7.8±0.1	4.5±0.15
ICR9440	9.4±0.1	4.2±0.15
ICR1054	10.0±0.1	5.6±0.15
ICR1240	12.0±0.1	4.2±0.15
ICR1254	12.0±0.1	5.6±0.15
ICR12540	12.1±0.1	5.7±0.15
ICR1265	12.0±0.1	6.5±0.15
ICR1440	14.0±0.1	4.2±0.15
ICR1454	14.0±0.1	5.6±0.15
ICR14540	14.1±0.1	5.7±0.15
ICR1654	16.0±0.1	5.6±0.15
ICR16540	16.1±0.1	5.7±0.15

 

Great Power Coin Cell Safty Performance

 

Item	Environmental tests	Reliability Testing Result	Standard	Final Result
1	Short Circuit Test@general Temprature	No fire，no explosion, surface tempraure ≤150℃	GB31241	Pass
2	Short Circuit Test@ 55°C	No fire，no explosion, surface tempraure ≤150℃	GB31241	Pass
3	Over Charge（3C/4.6V）	No fire，no explosion	GB31241	Pass
4	Over Discharge	No fire，no explosion	GB31241	Pass
5	Crush Test	No fire，no explosion	GB31241	Pass
6	Impact Test	No fire，no explosion	GB31241	Pass
7	Vibration Test	No fire，no explosion	GB31241	Pass
8	Drop Test	No leak,  no fire，no explosion	GB31241	Pass
9	Heating Test 130°	No fire，no explosion	GB31241	Pass
10	Temperature Cycling Test	No smoke,  no fire，no explosion	GB31241	Pass

 

 

retention rate %	coverage rate %	voltage change rate %	internal resistence change rate %
87.7%	102.0%	1.0%	9.1%

 

The voltage remains above 3.9V for long storage time at room temperature.

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