Coin-type lithium batteries have the advantages of high energy and high reliability, and are widely used in the Internet of Things, automotive equipment, medical and factory automation and other fields. Conventional coin-type lithium batteries were mainly used as a backup power source, but in recent years, demand for coin-type lithium batteries as a main power source has been increasing. In order to meet this demand, Murata Manufacturing Co., Ltd. (hereinafter referred to as "Murata") has newly developed new products in addition to the "standard" and "heat-resistant" products based on the heat-resistant technology and utilization improvement technology accumulated over the years "High-current type" and "quasi-heat-resistant" coin-type lithium battery products. At present, Murata has begun shipping samples of new products, and is expected to start shipping bulk products in January 2019.
Murata envisions the use of "high-current" coin-type lithium batteries for logistics and asset management tracking equipment and outdoor infrastructure, factory automation control equipment, and LPWA (Low Power Wide Area) communication methods such as "LoRa" and "SIGFOX". Environmental monitoring sensors and other fields. In addition, Murata's "quasi-heat-resistant" coin-type lithium batteries can be used as an alternative to traditional cylindrical batteries in addition to the main applications envisaged for automotive and outdoor IoT devices (smart meters and factory automation control equipment).
Murata coin type lithium battery type list
Murata "high current" coin-type lithium battery
Murata's "high-current" coin-type lithium battery products have a maximum pulse discharge current * 1 which is approximately twice (50mA) as in the past, and can also be used in LPWA communication equipment such as LoRa with high peak currents that were difficult to apply in the past. Its discharge time is about 3 times of the previous * 3, which can effectively reduce the frequency of battery replacement.
Mr. Lo. Alliance member, Semtech Japan Contract Co., Ltd. who designed LoRaWAN module with Murata. Vivek Mohan once stated: "Semtech's LoRa RFIC SX1261 requires a supply current of approximately 25mA at 3V and a supply current of approximately 42mA in order to obtain the LPWA's conventional high-frequency output of 20mW. Furthermore, the maximum transmission time under the LoRaWAN standard It is 3 seconds or less. Because Murata's new "high-current" coin-type lithium battery can now use a maximum current of 50mA and a maximum of 3 seconds, it can be fully expected to be applied to small sensor nodes compatible with LoRaWAN. "
Murata "quasi-heat-resistant" coin-type lithium battery
In order to meet the application needs of electronic components and ICs, Murata's "quasi-heat-resistant" coin-type lithium battery products have expanded the operating temperature range to? 40 ° C to 85 ° C * 4. Compared with "standard" lithium battery products, this product can maintain high voltage even when stored at 85 ° C for more than 100 days. Compared with "heat-resistant" coin-type lithium battery products, this product has a lower price and achieves a cost-effective model. Take Murata's "quasi-heat-resistant CR3677X" * 5 as an example. This product has a large capacity and helps to reduce the size and thickness of electronic equipment.
Murata is committed to providing electronic components and solution services for the Internet of Things market. In September 2017, Murata added Sony's battery business, which has more than 40 years of production performance, to its product lineup to meet the various needs of customers. In the future, Murata will also contribute to the further development of the Internet of Things.
When discharged to 50% of the rated capacity, with a pulse length of 3 seconds, it can maintain a current value of 2V or more (at 23 ° C environment) * Capacity when discharged at a standard discharge current (temperature: 23 ° C, termination voltage: 2.0V)
The values stated here are not guaranteed values.
Note:
* 1 The maximum current value that can be pulsed at 2V or higher (at 3 seconds) at a temperature of 23 ° C and discharged to 50% of the rated capacity.
* 2 May vary depending on the use environment and conditions.
＊ 3 In a 23 ° C environment, a pulse discharge condition at 45 mA for 3 seconds and no discharge for 33 seconds.
＊ 4 What is the operating temperature range of the "standard type"? 30 ° C to 70 ° C.
＊ 5 The shipment schedule of the "quasi-heat-resistant CR3677X" is scheduled for the end of 2019.