lithium–sulfur (li–S) batteries with high energy density and long cycle life are considered to be one of the most promising next-generation energy-storage systems beyond routine lithium-ion batteries. Various approaches have been proposed to break down technical barriers in li–S battery systems. The use of nanostructured metal oxides and sulfides for high sulfur utilization and long life span of li–S batteries is reviewed here. The relationships between the intrinsic properties of metal oxide/sulfide hosts and electrochemical performances of li–S batteries are discussed. Nanostructured metal oxides/ sulfides hosts used in solid sulfur cathodes, separators/interlayers, lithium- metal-anode protection, and lithium polysulfides batteries are discussed respectively. Prospects for the future developments of li–S batteries with nanostructured metal oxides/sulfides are also discussed.
上传时间： 2017-11-23
上传用户：653357637
li> <li>kai li de dao hang GPS之家-专业版243
上传时间： 2017-12-15
上传用户：cyrs
li> <li>css美化有序列表，贴出部分css代码 <ol > <li>先涂粉底再涂防晒</li> <li>先涂防晒再涂粉底</li> </ol> <!doctype html> <html> <head> <title>CSS3 ordered list styles - demo</title> <style> body{ margin: 40px auto; width: 500px; } /* -------------------------------------- */ ol{ counter-reset: li; list-style: none; *list-style: decimal; font: 15px 'trebuchet MS', 'lucida sans'; padding: 0; margin-bottom: 4em; text-shadow: 0 1px 0 rgba(255,255,255,.5); } ol ol{ margin: 0 0 0 2em; } /* -------------------------------------- */
上传时间： 2018-08-22
上传用户：53660542
li> <li>1.5mm间距接插件ZH1.5表贴直插 Altium PCB封装库2D3D元件库（3D视图库），共60个器件封装，型号如下：ZH1.5-li-2pZH1.5-li-3PZH1.5-li-4PZH1.5-li-5PZH1.5-li-6PZH1.5-li-7PZH1.5-li-8PZH1.5-li-9PZH1.5-li-10PZH1.5-li-11PZH1.5-li-12pZH1.5-li-13PZH1.5-li-14PZH1.5-li-15PZH1.5-li-16PZH1.5-LS-2PZH1.5-LS-3PZH1.5-LS-4PZH1.5-LS-5PZH1.5-LS-6PZH1.5-LS-7PZH1.5-LS-8PZH1.5-LS-9PZH1.5-LS-10PZH1.5-LS-11PZH1.5-LS-12PZH1.5-LS-13pZH1.5-LS-14pZH1.5-LS-15PZH1.5-LS-16PZH1.5-WI-2PZH1.5-WI-3PZH1.5-WI-4PZH1.5-WI-5PZH1.5-WI-6PZH1.5-WI-7PZH1.5-WI-8PZH1.5-WI-9PZH1.5-WI-10PZH1.5-WI-11PZH1.5-WI-12PZH1.5-WI-13PZH1.5-WI-14PZH1.5-WI-15PZH1.5-WI-16PZH1.5-WS-2PZH1.5-WS-3PZH1.5-WS-4PZH1.5-WS-5PZH1.5-WS-6PZH1.5-WS-7PZH1.5-WS-8PZH1.5-WS-9PZH1.5-WS-10PZH1.5-WS-11PZH1.5-WS-12PZH1.5-WS-13PZH1.5-WS-14PZH1.5-WS-15PZH1.5-WS-16P
上传时间： 2021-11-21
上传用户：XuVshu
li> <li>The PW4556 series of devices are highly integrated li-Ion and li-Pol linear chargers targetedat small capacity battery for portable applications. It is a complete constant-current/ constantvoltage linear charger. No external sense resistor is needed, and no blocking diode is required dueto the internal MOSFET architecture. It can deliver up to 300mA of charge current (using a goodthermal PCB layout) with a final float voltage accuracy of ±1%. The charge voltage is fixed at 4.2V or4.35V, and the charge current can be programmed externally with a single resistor. The chargerfunction has high accuracy current and voltage regulation loops and charge termination
标签： pw4556
上传时间： 2022-02-11
上传用户：1208020161
li> <li>The PW4554 is a cost-effective, fully integrated high input voltage single-cell li-ion battery charger.The charger uses a CC/CV charge profile required by li-ion battery. The charger accepts an inputvoltage up to 24V but is disabled when the input voltage exceeds the OVP threshold, typically 6.8V,to prevent excessive power dissipation. The 24V rating eliminates the over-voltage protection circuitrequired in a low input voltage charger
标签： pw4554
上传时间： 2022-02-11
上传用户：
li> <li>PW4203 is a 4.5-22V input, 2A multi-cell synchronous Buck li-Ion battery charger, suitable forportable application. Select pin is convenient for multi-cell charging. 800 kHz synchronous buckregulator integrates of 22V rating FETs with ultra low on- resistance to achieve high efficiency andsimple circuit design.The PW4203 is available in an 8-pin SOP package, provides a very compact system solution andgood thermal conductance
标签： pw4203
上传时间： 2022-02-11
上传用户：
li> <li>The PW3130 series product is a high integration solution for lithium-lion/polymer batteryprotection.PW3130 contains advanced power MOSFET, high-accuracy voltage detection circuits anddelay circuits. PW3130 is put into an ultra-small SOT23-5 package and only one external componentmakes it an ideal solution in limited space of battery pack. PW3130 has all the protection functionsrequired in the battery application including overcharging, overdischarging, overcurrent and loadshort circuiting protection etc. The accurate overcharging detection voltage ensures safe and fullutilization charging.The low standby current drains little current from the cell while in storage. Thedevice is not only targeted for digital cellular phones, but also for any other li-Ion and li-Polybattery-powered information appliances requiring long-term battery life
标签： pw3130
上传时间： 2022-02-11
上传用户：fliang
li> <li>The PW2601 is a charger front-end integrated circuit designed to provide protection to li-ionbatteries from failures of charging circuitry. The device monitors the input voltage, battery voltageand the charging current to make sure all three parameters are operated in normal range. Thedevice will switch off internal MOSFET to disconnect IN to OUT to protect load when any of inputvoltage, output current exceeds the threshold. The Over temperature protection (OTP) functionmonitors chip temperature to protect the device. The PW2601 also can protect the system’sbattery from being over charged by monitors the battery voltage continuously. The deviceoperates like a linear regulator, maintaining a 5.1V output with input voltages up to the input overvoltage threshold.The PW2601 is available in DFN-2x2-8L package. Standard products are Pb-free and Halogenfree
标签： pw2601
上传时间： 2022-02-11
上传用户：
li> <li>The PW2053 is a high-efficiency monolithic synchronous buck regulator using a constantfrequency, current mode architecture. The device is available in an adjustable version. Supply currentwith no load is 40uA and drops to <1uA in shutdown. The 2.5V to 5.5V input voltage range makesthe PW2053 ideally suited for single li-Ion battery powered applications. 100% duty cycle provideslow dropout operation, extending battery life in portable systems. PWM/PFM mode operationprovides very low output ripple voltage for noise sensitive applications. Switching frequency isinternally set at 1.2MHz, allowing the use of small surface mount inductors and capacitors. Lowoutput voltages are easily supported with the 0.6V feedback reference voltage
标签： pw2053
上传时间： 2022-02-14
上传用户：jason_vip1
li>