Which lithium battery has the lightest mass and smallest volume?

Under the same conditions, larger power battery has lighter weight;

Should be the best Panasonic 18650 lithium batteries and power than can reach more than 150 wh/kg;

General domestic lithium battery power than only 120 wh/kg.

Of lithium iron batteries are a group of batteries, lithium battery in the family the anode material for lithium iron phosphate, and lithium iron batteries for short. Compared with the conventional lead-acid batteries, lithium ion battery in the working voltage, energy density, cycle life, etc., all have distinct advantage.

Lithium iron batteries compared with conventional lead-acid batteries, has the following advantages: high energy density, safety, good high temperature performance, high power output, long cycle life, light weight, save room reinforcement cost, small volume, long battery life, good security, etc.

In 1990, SONY has introduced in the laboratory with LiCoO2 as cathode material of lithium ion batteries, and in 1991 began to industrialization production. Compared with the conventional lead-acid batteries, lithium ion battery in the working voltage, energy density, cycle life, etc., all have distinct advantage. So, in the past twenty years, lithium ion batteries are widely used in portable electronic equipment, electric tools, etc. But in recent years, with the global focus on energy conservation and emissions reduction, lithium ion battery also gradually be applied to communication, national grid and electric cars, and other industries. For communication power supply industry energy conservation and emissions reduction requirements of battery, smaller volume, lighter weight, longer service life, high temperature resistant, maintenance more easy, more stable performance, more environmental protection, etc., so in order to comply with these requirements, lithium ion batteries are also gradually shift to the large capacity battery, communication lithium iron phosphate batteries arises at the historic moment. The ABC of lithium iron batteries are a group of batteries, lithium battery in the family the anode materials for lithium iron phosphate material. And lithium iron batteries for short.

Lithium iron batteries, is not as safe as online some friends said. The danger of explosion. The technique requires to be honest, want to have a rigour.

lithium iron phosphate battery 26650-3 ah 3 c10v overcharge, the battery explosion. Repeat the test, similar results.

(note, this experiment is of a forming products, and tell people cannot provide photos)

When large current charging and discharging lithium battery, battery internal growing, activation of gas in the process of inflation, the battery internal pressure increase, pressure reaches a certain extent, such as shell have scars, which will burst and cause leakage, fire, or even an explosion. So, when they use, must pay attention to safety.

But in the process of normal use, generally used for battery management system power lithium battery to protect, so almost no explosion phenomenon. But for mobile phone batteries, due to the protection does not reach the designated position, instead more easily exploded.

1, the output efficiency: standard discharge for 2 ~ 5 c, continuous high discharge current can be up to 10 c, instantaneous pulse discharge (10 s) up to 20 c;

2, when the temperature: external temperature 65 ℃ when the internal temperature is as high as 95 ℃, at the end of the battery discharge temperature can reach 160 ℃.

3, the safety of the battery, there is a certain improvement, but not completely, there are dangers.

4, good cycle life, through 500 - cycle, its discharge capacity is greater than 95%;

5, discharge to zero volts no security issues;

6, fast charging;

7, the cost is low;

8, environmental pollution-free.

Lithium ion battery: a secondary battery (rechargeable batteries), it is mainly rely on lithium ions move between the positive and negative to work. In the process of charging and discharging, Li + embedded back and forth between the two electrodes and embedded off: when charging, Li + embedded from the anode, after anode, electrolyte embedded in the cathode in the rich lithium state; Discharge is the opposite.

Lithium batteries are divided into lithium battery and lithium ion batteries. Mobile phones and laptops are lithium ion battery, usually people commonly known as its for lithium battery. Materials containing lithium batteries are used as the electrode, is the representative of modern high-performance batteries. But the real lithium battery, because of the large risk rarely applied in the daily electronic products.

Lithium ion batteries by SONY of Japan in 1990 the first successful development. It is to put the lithium ions embedded carbon (petroleum coke and graphite) formed in the cathode (traditional lithium-ion batteries use lithium or lithium alloy as negative).The anode materials commonly used LixCoO2, also use LixNiO2 and LixMnO4, electrolyte with LiPF6 + ethylene carbonate (EC) + dimethyl carbonate (DMC).

Petroleum coke and graphite as the cathode materials, non-toxic, and abundant resources, lithium ion embedded carbon, overcome the lithium of highly active, solve the security problems of the traditional lithium battery, the positive LixCoO2 on charge and discharge performance and life span could reach a higher level, make the cost reduction, increased for the comprehensive performance of lithium ion batteries. Lithium ion battery of the 21st century will be a big market.

Lithium ion battery easily confused with the following two kinds of battery:

(1) : lithium-ion batteries for lithium metal anode.

(2) lithium ion battery: using non-aqueous organic liquid electrolyte.

(3) lithium ion polymer battery: by polymer gel liquid organic solvent, or directly with solid-state electrolyte. Lithium ion batteries with graphite cathode carbon materials commonly.

Lithium ion battery has a large energy density, the average output voltage. Uniformity, good batteries, under 2% (recoverable) a month. No memory effect. Wide working temperature range for - 20 ℃ ~ 60 ℃.Loop performance is superior, can fast charge and discharge, charging efficiency is as high as 100%, and the output power. Long service life. Does not contain toxic and harmful substances, known as the green cells.

Matters needing attention

Avoid using in harsh conditions, such as: high temperature, high humidity, under the summer sun exposure for a long time, etc., to avoid the battery into the fire.

When disassembling battery, should ensure that power equipment in power supply closed; Temperature should be kept between - 20 ~ 50 ℃.

To avoid the battery for a long time "deposit", stop using electric appliance.

The page contains the contents of the machine translation.