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Типы аккумуляторов

Существует несколько основных типов аккумуляторов используемых в портативной технике. Это никель-кадмиевые(Ni-Cd), никель-металлогидридные (Ni-MH), литий-ионные (Li-ion) и литий-полимерные (Li-polymer) аккумуляторы. Каждый тип аккумуляторов имеет свои особенности и условия эксплуатации. 

 

Никель-кадмиевые (Ni-Cd) аккумуляторы 

accum NiCd 1Небольшая плотность энергии и большое количество циклов перезарядки позволяют работать этим аккумуляторам в устройствах требующих продолжительной работы. Ni-Cd аккмуляторы почти не используют в бытовой технике. Чаще их применяют в профессиональных видеокамерах, радиостанциях, источниках бесперебойного пиатния, медицинском оборудовании, электроинструментах. Это связано с их устойчивостью к резким перепадам температур.

Для никель-кадмиевых аккумуляторов важно соблюдать режим полного заряда-разряда. Батареи следует заряжать только после их разряда, иначе это приведет аккумулятор в негодность. Хранить Ni-Cd аккумуляторы необходимо только в разряженном состоянии. Ni-Cd аккумуляторы состоят из токсичных компонентов. 

Никель-металлогидридные (Ni-MH) аккумуляторы 

accum NiMhЭто усовершенствованный никель-кадмиевый аккумулятор, который имеет в два раза большую емкость при тех же размерах. Аккумуляторы имеют высокий  уровень саморазряда, что определяет их короткий срок службы. Ni-MH аккумуляторы стоят дороже, чем Ni-Cd и реагируют на перепады температур. При производстве Ni-MH аккумуляторов не используются токсичные тяжелые металлы.

Недостатком для Ni-Cd и Ni-MH аккумуляторов является «эффект памяти», в связи с чем Ni-MH аккумуляторы необходимо «тренировать» - заражать-разряжать с некоторой периодичностью.  

Литий-ионные (Li-ion) аккумуляторы 

accum LiIoЭто современный тип батарей, который широко используется в портативной технике.

При небольшом весе и габаритах они обладают высокой плотность энергии, увеличенным в несколько раз циклом «заряда-разраяда» и не имеют «эффекта памяти».

Li-ion аккумуляторы чувствительны к перепадам температур и имеют ограниченный срок службы. Обладают эффектом старения -это обусловлено высоким уровнем саморазряда. Хранить аккумулятор нужно в прохладном помещении при температуре около 15 С  в заряженном состоянии. Li-ion аккумуляторы взрывоопасны. Перед тем, как купить аккумулятор, проверяйте дату производства. 

Литий-полимерные (Li-pol) аккумуляторы

accum LiPol Являются эволюционным звеном в производстве литий-ионных аккумуляторов. Особый состав электролита позволяет изготовлять батареи любых форм. Используются в мобильных телефонах. Li-pol аккумуляторы более безопасны и в них исключена возможность утечки электролита.

Li-pol аккумуляторы не обладают «эффектом памяти». К недостаткам относится высокая стоимость производства.

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