2016, Panasonic first introduced a flexible lithium battery. This batch of lithium ion battery is a rechargeable type design, CG-062939, CG-063555, CG-064065 three models, are 3.8V voltage (maximum charge voltage 4.35V) design capacity was 17.5mAh/40mAh/60mAh, the maximum charge current is 17.5mA/40mA/60mA. Thickness only 0.55mm, they support bending or distortion, the maximum can withstand R25mm amplitude bending (ie bending to radius 25mm arc radian) and + 25 degrees /100mm torsion. And after repeated twisting, bending, there is still a reliable charge and discharge characteristics. From the official website of Panasonic page information, the flexible battery in the experiment after 1000 bending amplitude of R25mm still retains 99% of capacity, and the torsion test 1000 + 25 ~ /100mm after torsion there are 99% capacity, can be said to have reached a high level. But the first batch of smaller capacity products, smart watches may not be able to apply, but the capacity has been able to meet some of the smart Bracelet without using the screen. Taiwan energy technology company independently developed ultra-thin flexible battery thickness of only 0.33mm, can be arbitrarily cut like paper, and puncture, tear, impact, and even shooting will not lead to leakage. And ordinary lithium-ion battery is different, the solid state battery can withstand high temperature, 1300 degrees Celsius high temperature gun fire it will not fire or explosion. A 182*230*0.4 mm standard flexible battery capacity of 1000-1400mAh.
Hui energy products using printing technology and FPC flexible circuit board packaging technology, but only print single-layer positive and negative. If a higher capacity is required, several batteries must be connected externally. Currently, Hui Neng has been able to supply some smart cards, but the price is very expensive.
Solid state electrolyte flexible batteries, mainly based on the U.S. Oak Grove National Laboratory developed in the late last century based on nitrogen doped lithium phosphate (LIPON) thin film battery technology. The whole process uses magnetron sputtering, in which solid state electrolyte preparation process needs plasma enhancement to achieve nitrogen doping.
The advantage of this battery is thin, flexible, high unit energy density, long life. But the defect is complex process, the unit area of the active material is too low, the cost is too high, only in microelectronics and other low-power areas of application. The general capacity of this film battery does not exceed 1mAh, thickness of tens of microns. Domestic Chongqing Han Yue Technology Development Co., Ltd. developed solid-state battery is the use of this technology. Its founder in Japan for many years to do solid state thin-film battery development, allegedly the company has received 160 million yuan of venture capital.
Hui Neng (Tianjin) Technology Co., Ltd., also known as Hui Neng, but Taiwan Hui Neng company has no relationship. The company developed bamboo battery through the battery design, skillfully in the bending part is not coated with the electrode material, the equivalent of a lot of small battery in parallel, and the related patent Apple Corp have different approaches but equally satisfactory results. A single battery itself is not bent, but the overall battery string can achieve bending effect. The process has a high demand for coating and packaging, but the author believes that when a single flexible battery can not be achieved, this is a good alternative. Tianjin Hui could have won the Tianjin TEDA Angel round of financing.
Tel: +86 186 6567 6364