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Archive for July, 2019
Posted by ww5302 | Jul 29, 2019 @ 10:38 AM | 1,919 Views
Famous FPV drone pilot Arwut Milk Wannapong tests DOGCOM Lipo battery of 1300mAh 120C 6S 22.2V.

MILK FPV | Test New Dogcom 1300 mAH 120c 6s (0 min 59 sec)

Posted by ww5302 | Jul 29, 2019 @ 10:23 AM | 1,898 Views
5 advantages of graphene Lipo batteries

Graphene Lipo battery becomes more and more popular. There are many well-known brands on the market, such as Hobby king, Dinogy, Lumenier and so on. This shows the popularity of graphene Lipo batteries. Our company also launched graphene Lipo battery as early as 2016 when we launched the DOGCOM brand.

Our graphene Lipo battery offers the following advantages over normal Lipo battery:

(1) Higher Cycle Life Retention rate. In the cycle life test of 1C charging and 1C discharging, the capacity retention rate is more than 96% after 200 weeks.

(2) Higher discharge rate performance. Under the condition of high discharge rate, the discharge platform is still kept high. In the 65C power discharge test, the capacity retention rate can reach 90% of the 1C discharge capacity, and the discharge platform is higher than 3.45v.

(3) With the ability to charge quickly. In the 10C charging cycle test, the capacity retention rate was still over 90% after 100 cycles.

(4) The lower the temperature at which the current is discharged. Because of its high thermal conductivity, graphene batteries have a lower surface temperature when tested at high rates of discharge. In 10C, 20C, 30C, 40C, 50C, 60C, 70C room temperature (25 °C) discharge test, the highest temperature does not exceed 65 °C.

(5) Good safety performance. Graphene batteries can pass vibration, free fall, heat abuse,
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Posted by ww5302 | Jul 01, 2019 @ 04:42 AM | 4,513 Views
We often see a lot of people on the forum to talk about the problem of Polymer Lithium Battery swelling. In fact, Lithium battery puffy is a comment phenomenon. The reason of battery swelling related to many factors. Such as production process, use method, use environment and so on.

Let me give you analysis the reason why a Lithium Polymer graphene battery will swelling:

(1) Poor encapsulation: Top sealing, Side sealing, and Degassing, poor encapsulation on either side can cause the Lipo battery cells to swell. Poor encapsulation will cause moisture in the air into the Lipo battery cell inside, which causes the electrolyte to break down and produce gas. But at present, the poor encapsulation cause the battery cell puffy rate has been greatly reduced.

(2) The moisture content inside the lipo battery cell exceeds the standard: There is a certain requirement for moisture content in the battery cell. Once the moisture content exceeds the standard, the electrolyte will fail, thus producing gas after the degassing.

(3) Abnormal vacuum extraction: Abnormal vacuum extraction due to system or machine reasons. The heat radiation area of the vacuum seal is too large, so the air-extraction bayonet can't penetrate the pocket effectively, and the air-extraction is not clean.

(4) Corrosion: Polymer Lithium Battery Cell Corrosion, aluminum layer consumed by the reaction, loss of water barrier role, so the battery swelling.

(5) Pocket surface damage: the surface of the...Continue Reading