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Enpower Greentech が円筒形電池でブレイクスルー実現

Download PDF Download PDF Download PDF November 3rd, 2022

[Japanese]

Title：Enpower Greentech が円筒形電池でブレイクスルー実現

Date：20221104

Text：Enpower Japanを傘下に持つEnpower Greentechホールディングス（日本、米国、中国を拠点とする次世代電池企業）は、容量4095mAhを持つ18650円筒形電池の開発に成功しました。今回、本電池の体積エネルギー密度は888Wh/L、重量エネルギー密度は389Wh/kgを実現しており、多様化する市場へ向けた新たな選択肢の提案となります。

Attachment：20221104_JP_Enpower-News-Release_Japanese_20221104.pdf

Enpower Greentech’s 18650 Cylindrical Lithium Metal Battery (4.1Ah)

[English]

Title：Enpower Greentech Achieved Breakthrough in Cylindrical Batteries

Date：20221104

Text：Enpower Greentech Inc. (a global solid-state battery developer based in the US, having operations in Japan, and China) has successfully developed a 4095mAh cylindrical battery, delivering industry leading energy densities of 389Wh/kg and 888Wh/L. This development has resulted in a new energy density record in the class of rechargeable 18650 cylindrical batteries. Enpower’s version, which is at least 20% lighter and is packed with at least 15% higher energy than those currently on the market, will clear the way for lighter, more energy-efficient electronic devices including, among others, drones, electric crafts, and electric cars.

Attachment：20221104_EN_Enpower-News-Release_English_20221104.pdf

Table1 18650 Batteries’ Performances:

 

Capacity
(mAh) 

Nominal
Voltage 

(V) 

Weight 

(g) 

Gravimetric
Energy
Density(Wh/kg) 

Volumetric Energy
Density1) (Wh/L) 

Panasonic2) 

(NCR18650GA) 

3450 

3.6 

48 

259 

708 

Samsung SDI2) 

 (INR18650-35E) 

3450 

3.6 

50 

248 

708 

LG Chem2) 

 (INR18650MJI) 

3500 

3.6 

48 

263 

719 

NanoGraf3) 

(18650-2021) 

3800 

N/A 

N/A 

N/A 

800 

NanoGraf 3) 

(18650-2022) 

4000 

N/A 

N/A 

N/A 

810 

Enpower Greentech 

(LMB18650-4.1Ah) 

4095 

3.8 

40 

389 

888 

Table1 18650 Batteries’ Performances

[Chinese]

Title：恩力动力研制出能量密度389Wh/kg的18650电池

Date：20221104

Text：近日，恩力动力（Enpower Greentech, 包括在中国、日本、美国的固态电池公司）成功研制出了容量达到4095mAh的18650圆柱电池，达到了行业领先的能量密度（389Wh/kg和888Wh/L）。这一开发成果创造了可充电18650圆柱形电池的新能量密度记录；与目前市场上的电池相比，恩力的电池至少轻20%，能量密度至少提高15%，这将为包括无人机、电动飞机及电动汽车等提供更轻、更节能的电池。

Attachment：20221104_CN_Enpower-News-Release_20221104.pdf  

 

Appendix： 

Figure 1A, Development of the capacity of 18650 lithium-ion batteries over years.
Figure 1B, Comparison of the energy density of 18650 batteries.
Figure 2, Charge and discharge curve (Enpower LMB 18650-4.1Ah).

Reference: 

1) The volume of 18650 cells used for Wh/L calculation is 0.01753 L (D:18.5 x H:65.25 mm). 

2) https://www.nasa.gov/sites/default/files/atoms/files/nabw21_li-ion_cylindrical_hard_case_cells_market_2021_ver1.pdf 

3) https://electrek.co/2022/10/20/nanograf-battery/ 

4) https://insideevs.com/news/598656/tesla-4680-battery-cell-specs/amp/  

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