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How to Use and Maintain Polymer Lithium Battery-
Lithium polymer is the latest technology in the world of batteries. It’s a rechargeable battery featuring a soft polymer casing and a soft external pouch, as the main difference from standard lithium-ion batteries.
Also, lithium-ion batteries with gelled polymers as an electrolyte are categorized under LiPo. But in most cases, this term describes a type of li-ion battery in a pouch, and hence, lithium-ion polymer battery.
LiPo batteries are a result of constant attempts by battery manufacturers to create more stable and powerful batteries. The technology creates batteries that are lighter and more flexible than other options of lithium-ion batteries.
It is their soft shells that make them more flexible. Thus, they have become extremely popular in mobile and other electronic devices. Remote control vehicles and RVs have become more common thanks to these batteries.
Like any other battery type, there is a need for proper usage. You need to know the best conditions for your batteries to operate and ensure you get them properly.
And that is what our guide today is all about. We will show you how to use these batteries.
Disadvantage (under Normal Circumstances)
When buying batteries, it’s extremely important to understand their advantages and disadvantages. Even though LiPo batteries have so many benefits, they also come with several limitations, even when used under normal circumstances. You need to know them in order to make the best buying decisions.
Consider the following:
It may have less recharge cycle.
Recharge life cycles are among the main factors to consider when buying a battery. You need to get something that will serve you for a long time while giving you the best performance.
Charge-recharge cycle means the number of times a battery can be recharged before it runs out of capacity. A good battery can have more than 1000 cycles.
LiPo batteries generally have fewer life cycles of about 300 to 400 charge cycles. This means it may not work for a long time, even when exposed to the best conditions.
Lower Energy Density
Energy density measures how much power a battery can give as per its size and is measured in Wh/kg. Lithium-ion batteries have a higher energy density of 100 to 250, while LiPos have a lower one of 130 to 200.
In some cases, this is an advantage, especially when it comes to transportation. However, it becomes a little less efficient when you include other factors. This is not a limitation when you get the best battery for your application.
Higher Cost
Batteries are one of the biggest investments in the world that rely on electronic devices. Consumers are often looking for the most affordable options.
Lithium polymer batteries are more expensive than standard lithium batteries. Some cost more than double the price of Li-ion batteries. Whereas this price may be justified by the improved performance and general safety, it might not be what everyone wants.
So, if you are looking for a cheaper battery, LiPo may not be your best choice. It might be a great investment in the long run, though, considering it delivers better performance than other batteries.
Maintain Instructions (Under Normal Circumstances)
Many consumers expose their batteries to certain conditions that may damage their performance and reduce life without knowing. Maintenance is a crucial part of using any battery for maximum benefit, something that some users don’t have a clue about.
So, how do you maintain a LiPo battery to get the best results? There are different ways of doing so. Here are a few ideas to get you started.
Observe and note the run time before using.
When you get a new battery, it’s always advisable to observe and note its run time and compare it with your older battery. This is why experts say you must charge your battery fully before you start using it.
Use the battery run time to lay the foundation for comparison with other batteries. The run time will vary depending on the battery’s quality and device.
Keep an eye on the charge status of your battery.
As stated above, LiPo batteries tend to have a shorter life cycle. It can grow even shorter when you don’t use it properly.
One way of ensuring you get that performance is by constantly checking the charge status. Note how fast the battery drains under certain conditions, especially as it gets older.??
Check your battery routinely as it gets older.
A battery that is approaching the end of its estimated life can have more issues than a new battery. We have batteries explode due to poor user conditions and lack of proper care from the user. You wouldn’t want that happening to you.
Storage
Storing batteries can be a bit tricky. Most batteries come with instructions and specific approaches to proper storage, especially concerning temperature.
If you are storing your LiPo battery for an extended period, therefore, charge or discharge it to about 50% and then store it under cool temperatures. Hot conditions can lead to increased reaction inside the battery and damage it in the long run.
Charging
Another area to keep an eye on when using LiPo batteries is charging conditions. Whereas LiPo batteries are safer than standard li-ion batteries, it’s still important to follow the right procedure for your safety and to keep the battery in good condition.
Refer to the product manual about the right charger to use and the best charging conditions. When troubleshooting, use one battery to test another.
Always charge your batteries at the right temperature. It becomes hard to maintain them properly if you don’t use the right charging procedure, and it can even damage your batteries beyond repair.
Safety Standards
Lithium polymer batteries must be used properly to avoid severe damage and other issues. Here are the safety precautions to keep in mind:
LiPo batteries can cause fires, explosions, and other damage. Always check the manufacturer’s instructions for safe charging, usage, and storage.
Excessive shock or vibration can lead to battery deformation, crashing, and other damages.
The batteries must be charged with a recommended charger as they have specific charging requirements.
In short, always refer to safety instructions when using, charging, or storing LiPo batteries. Double-check the settings on your charger, keep your battery under cool temperatures, and avoid any physical damage.
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锂电池圆柱型号大全+
锂电池圆柱型号大全
电芯型号 标称电压（V） 标称容量（mAh） 充电温度（℃） 放电温度（℃） 充电电流（A） 放电电流（A） ICR18650（三元） 3.7V 2200mAh 0~45℃ -40℃~+60℃ 2.2A（常温1C） 10A（常温5C） ICR18650（三元） 3.7V 2500mAh 0~45℃ -40℃~+60℃ 2.5A（常温1C） 25A（常温10C） ICR18650（三元） 3.7V 3000mAh 0~45℃ -40℃~+60℃ 3.0A（常温1C 15A（常温5C） ICR21700（三元） 3.7V 4000mAh 0~45℃ -40℃~+60℃ 4.0A（常温1C） 40A（常温10C） NCR18650B(三元） 3.6V 3350mAh 0~45℃ -20~60℃ 1.625A 4.875A INR18650-30Q（三元） 3.6V 3000mAh 0~45℃ -20~75℃ 0.5C 15A IFR26650（磷酸铁锂） 3.2V 3200mAh -20℃~+45℃ -40℃~+60℃ 3.2A（常温1C） 10A（常温3C） IFR32700（磷酸铁锂） 3.2V 5000mAh -20℃~+45℃ -40℃~+60℃ 5.0A（常温1C） 25A（常温5C） IFR26650 E3400（磷酸铁锂） 3.2V 3400mAh 0~60℃ -10~60℃ 2.0V 10.2A
一、什么是圆柱锂电池？
1、圆柱形电池的定义
圆柱形锂电池分为磷酸铁锂、钴酸锂、锰酸锂、钴锰混合、三元材料不同体系，外壳分为钢壳和聚合物两种，不同材料体系电池有不同的优点。目前，圆柱主要以钢壳圆柱磷酸铁锂电池为主，这种电池的表现为容量高、输出电压高、良好的充放电循环性能、输出电压稳定、能大电流放电、电化学性能稳定、使用安全、工作温度范围宽、对环境友好，广泛应用于太阳能灯具、草坪灯具、后备能源、电动工具、玩具模型上。
2、圆柱形电池结构
一个典型的圆柱形电池的结构包括：外壳、盖帽、正极、负极、隔膜、电解液、PTC元件、垫圈、安全阀等。一般电池外壳为电池的负极，盖帽为电池的正极，电池外壳采用镀镍钢板。
3、圆柱形锂电池的优点
与软包和方形锂电池相比，圆柱型锂电池的发展时间最长，标准化程度较高、工艺较为成熟、良品率高和成本低。
· 生产工艺成熟、PACK成本较低、电池产品良率较高、散热性能好
· 圆柱形电池已形成一系列国际上统一的标准规格和型号，工艺成熟，适合大批量连续化生产。
· 圆柱体的比表面积大，散热效果好。
· 圆柱形电池一般为密封蓄电池，使用过程中不存在维护问题。
· 电池外壳耐压高，使用过程中不会出现如方形、软包装电池膨胀等现象。
4、圆柱形电池正极材料
目前来说，主流的商业化圆柱形电池正极材料主要有钴酸锂(LiCoO2)、锰酸锂(LiMn2O4)、三元（NMC）、磷酸铁锂(LiFePO4)等，不同材料体系电池有不同的特点，对比如下：
项目 钴酸锂 锂镍钴锰三元(LiNiCoMnO2) 锰酸锂(LiMn2O4) 磷酸铁锂(LiFePO4) 振实密度（g/cm3） (LiCoO2) 2.0～2.3 2.2～2.4 1.0～1.4 比表面积（m2/g） 2.8～3.0 0.2～0.4 0.4～0.8 12～20 克容量(mAh/g) 0.4～0.6 140～180 90～100 130～140 电压平台(V) 135～140 3.5 3.8 3.2 循环性能 3.7 ≥500次 ≥300次 ≥2000次 过渡金属 ≥500次 贫乏 丰富 非常丰富 原料成本 贫乏 高 低廉 低廉 环保 很高 含镍、钴 无毒 无毒 安全性能 含钴 较好 良好 优秀 适用领域 差 小电池/小型动力电池 动力电池、低成本电池 动力电池/超大容量电源 优点 中小电池 电化学性能稳定，循环性能好 锰资源丰富，价格较低，安全性能好 高安全性，环保，长寿命 缺点 "充放电稳定，生产工艺简单 钴价格昂贵，循环寿命较低" 钴价格昂贵 能量密度低，电解质相容性差 低温性能较差，放电电压低 5、圆柱形电池负极材料
圆柱形电池负极材料大概分为六种：碳负极材料、合金类负极材料、锡基负极材料、含锂过渡金属氮化物负极材料、纳米级材料、纳米负极材料。
· 碳纳米级材料负极材料：目前已经实际用于锂离子电池的负极材料基本上都是碳素材料，如人工石墨、天然石墨、中间相碳微球、石油焦、碳纤维、热解树脂碳等。
· 合金类负极材料：包括锡基合金、硅基合金、锗基合金、铝基合金、锑基合金、镁基合金和其它合金，目前也没有商业化产品。
· 锡基负极材料：锡基负极材料可分为锡的氧化物和锡基复合氧化物两种。氧化物是指各种价态金属锡的氧化物。目前没有商业化产品。
· 含锂过渡金属氮化物负极材料，目前也没有商业化产品。
· 纳米级材料：纳米碳管、纳米合金材料。
· 纳米负极材料：纳米氧化物材料
二、圆柱锂电池电芯
1、圆柱形锂离子电芯品牌
圆柱型锂电池在日本、韩国锂电池企业中较为流行，中国国内也有相当规模的企业生产圆柱型锂电池。最早的圆柱形锂电池是由日本SONY公司于1992年发明。
知名圆柱形锂离子电芯品牌：索尼、松下、三洋、三星、LG、万向A123、比克、力神等。
2、圆柱形锂离子电芯种类
圆柱型锂离子电芯通常用五位数字表示，从左边数起，第一、二位数字是指电池直径，第三、四位数字是指电池高度，第五位数字表示圆形。圆柱型锂电池有诸多型号，比较常见的有10400、14500、16340、18650、21700、26650、32650等。
①10440电池
10440电池是一种直径为10mm、高度为44mm的锂电池，与我们常称为“7号电池”的大小一样，这种电池容量一般很小，只有几百mAh，主要应用在迷你电子产品。例如手电筒、迷你音响、扩音器等。
②14500电池
14500电池是一种直径为14mm、高度为50mm的锂电池，这种电池一般是3.7V或者3.2V，标称容量比较小，比10440电池大一点，一般是1600mAh，放电性能优越，应用领域最主要是消费电子类，例如无线音响、电动玩具、数码相机等。
③16340电池
16340电池是一种直径为16mm、高度为34mm的锂电池，这种电池由于尺高度矮一点，而且容量也不是很小，因此在强光手电筒、LED手电筒、头灯、激光灯、照明灯具等经常出现。
④18650电池
18650电池是一种直径为18mm、高度为65mm的锂电池，它最大的特点是拥有非常高的能量密度，几乎达到170瓦时/千克，因此这种电池是性价比较好的电池，我们平时经常看见的多数是这种电池，因为它是比较成熟的锂电池，各方面系统质量稳定性较好，广泛适用于10千瓦时左右的电池容量场合，例如在、在手机、笔记本电脑等小型电器上。
⑤21700电池
21700电池是一种直径为21mm、高度为70mm的锂电池，因为它的体积增大，空间利用率变大,电芯单体以及系统能量密度可得到提升，它的体积能量密度远高于18650型电池，广泛用于数码，电动车、平衡车、太阳能能锂电池路灯、LED灯、电动工具等。
⑥ 26650电池
26650电池是一种直径为26mm、高度为65mm的锂电池，标称电压3.2V、标称容量3200mAh，这种电池用拥有优秀的容量及高一致性等特点，已逐步成为代替18650电池趋势，在动力电池方面很多产品也将逐步青睐于此。
⑦ 32650电池
32650电池是一种直径为32mm、高度为65mm的锂电池，这种电池持续放电能力很强，因此比较适用于电动玩具、后备电源、ups电池、风能发电系统、风光互补发电系统。
三、圆柱锂电池市场发展
圆柱形锂离子电池技术进步主要来自关键电池材料创新研究与应用进展，通过新材料的开发进一步提高电池性能，提高质量，降低成本，改善安全性。为满足下游应用对电池比能量提升的要求，一方面通过采用高比容量的材料，另一方面可通过提高充电电压，采用高电压材料。
圆柱形锂离子电池从14500发展到特斯拉21700电池，在近中期的发展中，在优化现有体系锂离子动力电池技术满足新能源汽车规模化发展需求的同时，以开发新型锂离子动力电池为重点，提升其安全性、一致性和寿命等关键技术，同步开展新体系动力电池的前瞻性研发。
为了圆柱形锂离子电池的中远期发展，在持续优化提升新型锂离子动力电池的同时，重点研发新体系动力电池，显著提升比能量，大幅降低成本，实现新体系动力电池实用化和规模化应用。
四、圆柱锂电池和方形锂电池对比
1.电池形状：方形尺寸大小可以任意设计，而圆柱电池不能比。
2.倍率特性：圆柱电池焊接多极耳的工艺限制，倍率特性稍差于方形多极耳电池。
3.放电平台：采用相同的正负极材料和电解液的锂电池，从理论上来讲，放电平台应该是一致，但方形锂电池内放电平台稍微高一点。
4.产品质量：圆柱电池的制造工艺较为成熟，极片有二次分切缺陷机率低，且卷绕工艺的成熟度和自动化程度都比较高，迭片工艺目前还是采用半手工方式，这对于电池质量有不利影响。
5.极耳焊接：圆柱电池极耳较方形锂电池更易焊接；方形锂电池易产生虚焊影响电池质量。
6.PACK成组：圆柱电池有更易用特点，所以PACK技术简单，散热效果好；方形锂电池PACK时要解决好散热的问题。
7.结构特点：方形锂电池边角处化学活性较差，长期使用电池能量密度易衰减，续航时间较短。
五、圆柱锂电池和软包锂电池对比
1.软包电池安全性能较好，软包电池在结构上采用铝塑膜包装，发生安全问题时，软包电池一般会鼓气裂开，而不像钢壳或铝壳电芯那样发生爆炸;在安全性能上优于圆柱形锂电池。
2.软包电池重量相对轻，软包电池重量较同等容量的钢壳锂电池轻40%，较圆柱形铝壳锂电池轻20%;内阻小，软包电池的内阻较锂电池小，可以极大的降低电池的自耗电;
3.软包电池循环性能好，软包电池的循环寿命更长，100次循环衰减比圆柱形铝壳电池少4%～7%;
4.软包电池设计比较灵活，外形可变任意形状，可以更薄，可根据客户的需求定制，开发新的电芯型号。而圆柱形锂电池不具备这个条件。
5.软包电池相比于圆柱形锂电池的不足之处为一致性较差，成本较高，容易发生漏液。成本高可通过规模化生产解决，漏液则可以通过提升铝塑膜质量来解决。
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锂电池型号表，锂电池规格型号大全+
圆柱锂电池型号规格
圆柱形锂电池的型号命名，由三个字母和五位数字组成，IEC61960规定圆柱形和方形电池的规则如下：
圆柱形锂电池，3个字母后连5个数字。3个字母，I表示有内置的锂离子，L表示锂金属或锂合金电极。第二个字母表示正极材料，C表示钻，N表示镍，M表示锰，V表示钒。第三个字母为R表示圆柱形。
5个数字，前2个数字表示直径，后3个数字表示高度，单位都为mm。
如：ICR18650就是直径为18mm，高度为65mm，0表示圆形的通用18650圆柱形电池。
3.6V是指标称电压为3.6V。
C是表示电池放电时的放电倍率，单位mAh，通俗的说就是单位时间内放电大小或是速度。比如所用的电池容量1h放电完毕，称之为1C放电;5h放电完毕，则称之为0.2C放电。
圆柱形锂电池型号表：
型号 标称电压（V） 标称容量（mAh） 直径（mm） 高度（mm） 应用领域 14500 3.7 800 14 50 仪器仪表，消费电子 18650 3.7 2000-3500 18±0.2 65±2.0 特种设备，医疗设备，机器人 18500 3.6 800-1500 18±0.2 18±0.2 安防通讯，轨道交通 26650 3.2 3200~3500 26.2 65.6 动力/储能领域，机器人，应急后备 21700 3.6 3000-4800 21 70 数码设备，电动工具 32650(32700) 3.2 4500-6500 32.4±0.3 70.5±0.2 仪器仪表，后备电源，特种设备领域
方形锂电池型号规格
方型电池的型号命名：6个数字分别表示电池的厚度、宽度和高度，单位毫米。三个尺寸任一个大于或等于100mm时，尺寸之间应加斜线;三个尺寸中若有任一小于1mm，则在此尺寸前加字母t”，此尺寸单位为十分之一毫米。
ICP103450表示一个方形二次锂离子电池，正极材料为钻，其厚度约为10mm，宽度约为34mm，高约为50mm。
ICPO8/34/150表示一个方形二次锂离子电池，正极材料为钻，其厚度约为8mm，宽度约为34mm高约为150mm。
ICPt73448表示一个方形二次锂离子电池，正极材料为钻，其厚度约为0.7mm，宽度约为34mm高约为48mm。
方形锂电池型号表：
型号
尺寸
标称容量
(mAh)
内阻（mΩ）
标称电压（V）
厚度
(±0.3mm)
宽度
(±0.3mm)
高度
(±0.5mm)
3578131
3.5
78
131
4000
＜40
3.7
3463110
3.4
63
110
2700
＜40
3.7
3845120
3.8
45
120
2200
＜40
3.7
366090
3.6
60
90
2000
＜40
3.7
3435165
3.4
35
165
1800
＜40
3.7
2453135
2.4
53
132
1400
＜40
3.7
385085
3.8
50
85
1300
＜60
3.7
344461
3.4
44
61
1200
＜60
3.7
255480
2.5
52
80
1150
＜50
3.7
393278
3.9
32
78
1100
＜65
3.7
305060
3
50
60
900
＜40
3.7
383450
3.8
34
50
600
<70
3.7
383450
3.8
34
50
450
＜80
3.7
233759
2.4
37
59
380
＜80
3.7
392339
3.9
23
39
330
＜80
3.7
302441
2.8
24
40.5
250
<100
3.7
251776
2.5
17
76
230
＜120
3.7
302145
3
21
45
210
＜150
3.7
222530
2.5
25
30
120
＜180
3.7
321239
3.1
12
39
100
＜200
3.7
-
Information retrieval+
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What is An 18650 Lithium Battery?+
18650 refers to the appearance specification of the battery, which is a standard battery model determined by SONY in order to save costs. 18 means 18mm in diameter, 65 means 65mm in length, and 0 means cylindrical battery.
The nominal voltage of a 18650 lithium battery is usually 3.6V or 3.7V, the minimum discharge final voltage is 2.75V, and the normal capacity is 1200 ~ 3500mAh.
1.The Best 18650 Lithium Battery Charger
An 18650 lithium battery charger is specially used to charge an 18650 battery. Lithium battery has high demand on charger. It needs a protection circuit, so the lithium battery charger usually has higher more precise of control. It can charge athe lithium battery with a constant current and constant voltage.
· The working state of lithium battery charger is consistent with the battery. If the charger works in the state of lithium battery and charges a NI-MH battery or nickel-cadmium battery, the battery will be charged insufficiently and the working time will be greatly reduced. If the charger works in the state of nickel battery to charge lithium battery, the lithium battery will be overcharged. It will seriously affect the battery cycle life.
· Make sure the battery is fully charged,when the lithium battery charger is fully chargedd. You can remove it. The lithium battery can be removed from some chargers when the fully charge indicator light is on, while with some chargers you cannot remove the battery until all the indicator lights are on.
2.18650 Lithium Battery Type
According to Anode Chemical Materials
Lithium cobalt 18650, lithium manganate 18650, ternary 18650, lithium iron phosphate 18650, Ni-Mh 18650 (uncommon)According to Discharge Performance
Capacity battery and power batteryCapacity 18650 Battery Cell
A capacity battery is a battery that pursues maximum capacity as far as possible in a small volume. The capacity of this kind of battery is relatively large, and tends to be more than 3000mah, while the discharge current is relatively small. It is suitable for a power bank, a flashlight, security, a mine lamp, an alarm, medical equipment, etc. They consume power at a sustained rate for a long period of time without requiring high current.Power 18650 Battery Cell
A power battery does not have a high capacity. It is 2000-2400mah, but the discharge rate is large. It can reach more than 3C discharge, or even more than 10C. It is suitable for equipment that needs high current, such as power tools, vacuum cleaners, vaping, model airplane, swing cars, unicycles, etc.
3.18650 Lithium Battery Chemical Material and Naming
Common Battery Chemical Materials
· LCO - Lithium Cobalt Oxide(LiCoO2)
· LMO - Lithium Manganese Oxide (LiMn2O4)
· NMC - Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2)
· NCA - Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2)
· LFP - Lithium Iron Phosphate(LiFePO4)
Common 18650 Cell Prefixes
· LCO - Lithium Cobalt Oxide(LiCoO2)
· LMO - Lithium Manganese Oxide (LiMn2O4)
· NMC - Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2)
· NCA - Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2)
· LFP - Lithium Iron Phosphate(LiFePO4)
4.18650 Lithium Battery Shrink Wrap
There are two kinds of heat shrinkable tubes for an 18650 lithium battery: PVC and PE. Most manufacturers will choose PVC heat shrinkable tubes because of their low cost and easy shrinkage.
· PVC heat shrinkable tubes are cheap, but are easy to break, so their operational period is not long, and they are difficult to repair if they are broken.
· A PE heat shrinkable tube is not easy not easy to be cut. It has high temperature resistance, and won’t scald because a battery has overheated.