Brands compete for adoption, and steel shell button batteries become standard for TWS headphones.

TWS earphone is a very popular earphone product in recent years. It has the characteristics of instant connection when the cover is opened, ready to use, and convenient storage. It has got rid of the constraints that wired earphones are difficult to store and the wires are easy to wind, and has been welcomed by the majority of users, replacing the traditional wired earphones in a large proportion. The battery of TWS headphones is the most important part of the reason why TWS headphones can be used so conveniently.

apple Airpods series is the sales leader in the TWS headset market at present, which leads the development of the market in terms of design and structural configuration. In the direction of battery, Apple AirPods1 ST and 2 nd generations both used steel shell pin batteries, but replaced them with steel shell button batteries on AirPods Pro, which also made brand manufacturers in the market follow up quickly.

I love audio network closely following the development of TWS headset market. In recent years, I have made a detailed report on the dismantling of nearly 3 products, and found that many brands have also adopted steel shell button batteries as their own TWS headset power supply source. This time, I will analyze the advantages and product use cases of steel shell button battery in TWS headphones in detail ~

First, which batteries do TWS headphones need?

TWS headphones are mainly composed of a charging box and headphones. The charging box plays the role of storing and protecting headphones and charging headphones. Usually, the charging box is made of soft polymer battery with small capacity, which is small in overall size, easy to carry and can store headphones anytime and anywhere. However, some headphones have large charging boxes with 1865 batteries, which can support the function of mobile power supply.

because the earphones are connected wirelessly, both earphones also need batteries to power the internal devices. According to the types, the batteries carried in the earphone are divided into soft-bag batteries and steel-shell batteries, and the soft-bag batteries can be made into various shapes to fit the shape of the earphone; According to the shape of the earphone, the steel shell battery can be divided into steel shell needle shape and steel shell button shape. Among them, steel shell button battery is widely used, and steel shell pin battery is only used in a few products.

second, the advantages of steel shell button battery

I love audio network. After disassembling and analyzing hundreds of TWS headphones, I found that more and more headphones use steel shell button battery as power supply. We interviewed many battery experts in the industry and learned about the advantages and precautions of steel shell button battery as the battery of TWS headphones, and shared them with you for study and research.

valta:

The advantages of steel shell button battery include: high battery capacity density; The round button fits the earphone shape and provides the largest battery capacity possible in a compact space; The shell is hard and not easy to be damaged; Facilitate that production and assembly of the earphone; There is no swelling in charge and discharge, so the earphone size can be designed more accurately, and there is no need to reserve expansion space.

Yiwei Lithium Energy:

Steel-shell bean battery has excellent properties such as higher energy density, lower expansion rate and leakage rate, high dimensional consistency, high space utilization rate and fast charging, which makes the assembly process of TWS headphones simpler and more convenient, and gives TWS headphones consumers a beautiful experience of safety, portability and long battery life.

VDL Zijian:

At present, TWS headphones are mainly divided into two types: in-ear headphones and semi-in-ear headphones. In order to achieve a comfortable wearing experience, the appearance curve of headphones mostly presents an irregular circle similar to the auricle. Therefore, when the battery is to be put into it, it needs to be adjusted according to the appearance in order to carry a larger battery capacity.

The steel shell button battery has the advantages of regular circular volume, less deformation, small expansion space, and can be directly attached to the PCB board, which effectively saves the space size and can provide a larger capacity battery.

Micro-electric new energy:

For manufacturers, the steel shell button battery has good dimensional consistency, and there is no need to deliberately reserve expansion space. When the product is assembled, the acoustic cavity can be uniformly distributed in the center, which ensures the consistency of FR and ANC curves, and the manufacturing yield is well guaranteed.

For consumers/users, the earphone product with steel shell button battery will not swell during use, and the product performance will not change with time.

From the above, we can know that the biggest advantage of the steel shell button battery is that the product consistency is good, and there is no swelling problem in the charge and discharge cycle, and there is no need to reserve expansion space for the battery, so it can set a larger battery capacity; The hard steel shell of steel shell button battery can realize automatic assembly, and can also play a good role in protecting the battery during assembly, preventing the battery from being squeezed or scratched during assembly and affecting the service life of the battery.

button battery with steel shell has many advantages, but it also has a significant disadvantage, that is, using steel shell with higher mechanical strength instead of aluminum-plastic film packaging is heavier and more expensive than soft battery.

III. Summary of TWS headphones with steel shell button batteries on the market at present

I love audio network * * This time, 13 application cases of 43 steel shell button batteries of 15 brands were summarized, and 43 products were of different sizes, with capacities ranging from 3 mAh to 18 mAh. The product application cases covered most TWS earphone brands on the market at present.

Battery brands include Yiwei Lithium Energy, Jinshan Battery, Penghui Energy, LEBEI, Dianzi Electronics, Weizhou Electronics, Microelectronic New Energy, Nanfu Chuanying, OMNI, Samsung, Shenneng, Yanjiu Electronics, valta, Chongqing Zijian, Yanjiu Electronics and Zhili Battery. Let's learn more about these brands and their product application cases.

EVE Yiwei lithium energy

Yiwei lithium energy was founded in 21 and is a national high-tech enterprise, focusing on the innovation and development of lithium batteries. After nearly 19 years of hard work, the company's lithium secondary batteries sell well all over the world, and lithium primary batteries occupy an important position in the domestic market. In the past three years, Yiwei Lithium has focused on the power and energy storage market, and adopted a highly automated and information-based production method to provide customers with high-quality and highly reliable lithium battery products and services.

application case:

(1) disassembly report: Samsung Galaxy Buds+ true wireless Bluetooth headset

(2) disassembly report: UGREEN Green HiTune T1 true wireless Bluetooth headset

(3) disassembly report: ZMI PurPods true wireless Bluetooth headset

(4) Disassembly report: ZMI purple rice PurPods Pro true wireless noise-reducing headset

(5) Disassembly report: Bird Libratone AIR+ 2nd generation true wireless noise-reducing headset

(6) Disassembly report: Haylou Hey Hey MoriPods True wireless Bluetooth headset

(7) Disassembly report: Hey Hey Hey W1 True wireless headset.

(8) Disassembly report: Redmi AirDots3 Pro true wireless noise-reducing earphone

GP Jinshan Battery

Shenzhen Jinshan Battery Co., Ltd. was established on November 5, 27, and is a direct subsidiary of Hong Kong Jinshan Battery International Co., Ltd. The company's main business projects include research and development, production and sales of lithium batteries, nickel-hydrogen batteries, disposable batteries, battery chargers (including batteries) and battery accessories, as well as the above-mentioned import and export business and battery research and development technical services.

Application case:

(1) Disassembly report: ROWCING true wireless Bluetooth headset

GREATPOWER Penghui Energy

Guangzhou Penghui Energy mainly produces polymer lithium ion, lithium ion, nickel-hydrogen and other secondary batteries, lithium iron, lithium manganese, lithium thionyl chloride, zinc air and other primary batteries. The products are widely used in mobile power supply, airplane model, new energy automobile power battery, automobile starting power supply, backup power supply of communication base station, wind energy storage and home energy storage battery system solutions, and are the first to realize large-scale production, with independent intellectual property rights, and the main technical indicators are at the advanced level at home and abroad. Since 22, the company has started mass production of lithium batteries, which is an old-fashioned consumer lithium battery enterprise.

application case:

(1) disassembly report: Funcl Crazy Mi AI true wireless Bluetooth headset

(2) disassembly report: JBL Free true wireless Bluetooth headset

(3) disassembly report: JBL TUNE12 true wireless Bluetooth headset

(4) disassembly report: 1More omth. Ing AirFree true wireless Bluetooth headset

LEBEI

Application case:

(1) Disassembly report: Klipsch Jieshi x McLaren co-branded T5 II true wireless sports headset

LIDEA Electronics

Dongguan Electric Power Electronics Co., Ltd. is specialized in R&D, production and sales in button cell. The production workshop covers an area of more than 5, square meters and has advanced automatic production lines and automatic testing equipment. The products are made of high-quality raw materials at home and abroad, and the production is organized in strict accordance with ISO 91: 28 quality system standard, and the quality assurance system is constantly improved. The technical indicators of the products have exceeded IEC international standards, and we have a number of new practical invention patents in button cell.

At present, the two series of environmentally-friendly batteries produced by the company: lithium-manganese dioxide disposable button batteries and lithium-ion rechargeable button batteries have been widely used in various advanced electronic and electrical consumer goods fields: motherboards, calculators, electronic dictionaries, electronic clocks, remote controllers, burglar alarms, electronic scales, rice cookers, LED shoe lights, active labels, electric toys, medical devices and various instruments.

application case:

(1) disassembly report: HiBy Haibei WH3 true wireless Bluetooth headset

(2) disassembly report: iWALK true wireless Bluetooth headset

(3) disassembly report: KUGOU cool dog X5 true wireless Bluetooth headset

(4) disassembly report: Padmate Paimet Pa. Mu Slide Mini true wireless Bluetooth headset

(5) Disassembly report: Padmate Paimet T5 true wireless Bluetooth headset

(6) Disassembly report: Sony Ericsson T5 true wireless Bluetooth headset

MBT Microelectronics

MBT is the inventor of GTSS lithium-ion battery, glass sealed explosion-proof valve and stainless steel notched explosion-proof valve, and continues to develop new lithium-ion battery technology. Through innovative technology, we can avoid intellectual property rights and ship to the global market, providing customers with safe, reliable and durable lithium-ion batteries. It also provides high energy density beyond imagination, tiny size that traditional technology can't manufacture, and is always open to customized development of customers, with customers as the life, innovation as the root and quality as the soul.

application case:

(1) disassembly report: OPPO Enco X true wireless noise-reducing earphone

MIC-POWER micro-electric new energy

Guangdong micro-electric new energy co., ltd. was established in December 217 and is located in Dongjiang high-tech industrial park, Huizhou city. The company is mainly engaged in the design, production and sales of cylindrical button cell with lithium-ion steel shell, and can provide customized batteries and battery packs according to customers' design specifications, so that they can use the safest and largest battery to power the next generation technology. Products are mainly used in Bluetooth headsets, headphones and so on.

application case:

(1) disassembly report: 233621 Pearl true wireless bluetooth headset

(2) disassembly report: 233621 Zen Pro true wireless noise-reducing headset

(3) disassembly report: AUKEY EP-T1 true wireless bluetooth headset

(4) disassembly report: EDIFIER. Rambler DreamPods True Wireless Bluetooth Headset

(5) Disassembly Report: EDIFIER Rambler HECATE GM4 True Wireless Game Headset

(6) Disassembly Report: EDIFIER Rambler HECATE GM6 True Wireless Game Headset

(7) Disassembly Report: Rambler Lollipods Pro True wireless noise-reducing headset

(8) Disassembly report: EDIFIER rambler TO-U2 true wireless Bluetooth headset

(9) Disassembly report: EDIFIER rambler TWS NB2 true wireless noise-reducing headset

(1) Disassembly report: EDIFIER rambler X6 true wireless Bluetooth headset

(11) Disassembly. Abra Jabra ELITE 85t true wireless noise-reducing headset

(12) Disassembly report: JEET Air Plus true wireless Bluetooth headset

(13) Disassembly report: Klipsch T5 true wireless Bluetooth headset

(14) Disassembly report: MEIZU POP 2 true wireless Bluetooth headset

(15) Disassembly report. Solution report: MEIZU POP 2s true wireless Bluetooth headset

(16) Disassembly report: RHA TrueConnect 2 true wireless Bluetooth headset

(17) Disassembly report: RHA TrueControl ANC true wireless noise-reducing headset

(18) Disassembly report: UGREEN Green HiTune WS1. True wireless bluetooth headset

(19) disassembly report: VIDVIE X-Pods true wireless bluetooth headset

(2) disassembly report: vivo TWS Earphone true wireless bluetooth headset

(21) disassembly report: vivo TWS Neo true wireless bluetooth headset

(22) disassembly report: Feizhi Technology Silver Fox T1 true wireless bluetooth headset