Battery energy ngu ai gaw, W·h (sh) kW·h hta shapraw ai, n-gun langai ngai a npu e, battery langai mi pru wa lu ai n-gun hpe tsun mayu ai. Battery energy hpe madung hku nna lawu na amyu myu hku garan nna:
(1) Theoretical Energy
Batter hpe shapraw kau ai aten hta battery gaw rap ra ai hku nga ai ngu sawn la yang, shi a pru wa ai n-gun gaw wan n-gun (E) a manu hpe makawp maga ya ai, active material a jai lang ai lam gaw 100%, ngu ai gaw, hka pru ai atsam gaw theoretical atsam rai nga ai, dai hpang ndai masa ni a npu na n-gun dat pru ai lam gaw theoretical energy W kaji rai nga ai.
(2) Kaja wa nga yang N-gun
Teng sha n-gun atsam ngu ai gaw, n-gun hpe n-gun dat dat ai shaloi, teng sha shapraw ai hpe tsun mayu ai. Numerically hku nna, battery a teng man ai n-gun dat n-gun, n-gun yawm wa ai aten, hte n-gun dat ai aten, ngu ai hte maren sha rai nga ai.
Tatut engineering application ni hta, battery langai a tengman ai n-gun hpe battery pack a rated capacity hte battery a n-gun dat n-gun hpe jai lang nna, law law lang sawn la ai.
Active material hpe tup hkrak n mai lang ai majaw, battery a bungli galaw ai voltage gaw galoi mung shi a wan n-gun hta n law ai, dai majaw battery a tengman ai n-gun gaw shi a theoretical n-gun hta galoi mung n law ai.
(3) Hkum hkrang n-gun
Total energy ngu ai gaw, W·h hta shadawn ai, shi a asak hkrung ai aten hta battery langai a wan n-gun yawng hpe tsun mayu ai.
(4) N-gun hpe charge galaw ai
Charging energy ngu ai gaw, W·h hta shadawn ai, charge hku nna battery kata de bang ai wan n-gun hpe tsun mayu ai.
(5) N-gun hpe shayawm kau na
Discharging energy ngu ai gaw, n-gun dat dat ai aten hta battery hku nna wan n-gun pru wa ai lam hpe tsun mayu ai, W·h. battery langai a n-gun, shing nrai, battery a unit n-gun (sh) unit volume langai a n-gun hpe mass energy ngu shamying ma ai. Wan jak mawdaw ni hta, battery langai a laksan n-gun gaw mawdaw yawng a n-gun hte mawdaw gau ai shara hpe hkra machyi shangun nna, volumetric n-gun gaw battery a shara hpe hkra machyi shangun ai. Specific energy gaw battery amyu myu a bungli galaw ai lam hpe shingdaw na matu ahkyak ai masat kumla langai mung rai nga ai. Laksan n-gun atsam hpe theoretical specific n-gun (Wtch) hte tengman ai n-gun (W') ngu nna garan ginhka ai.
Theoretical specific n-gun gaw theoretical energy hte bung ai, battery reactiont a unit mass (sh) unit volume hpe tup hkrak shapraw kau ai shaloi, theoretical hku nna pru wa lu ai n-gun atsam hpe tsun mayu ai. Teng sha n-gun atsam gaw, n-gun atsam majing hte bung ai, battery reactive ni a unit mass (sh) unit volume hpe tup hkrak shapraw kau ai shaloi, shapraw ai n-gun hpe madi madun ai. Battery a tengman ai shapraw ai n-gun hte shi a mass (sh) volume a ratio hte laklai ai lam nga ai.
shing nrai
Formula hta, C-- gaw battery a mass hpe madi madun ai; V-- battery a n-gun hpe madi madun ai. Lam amyu myu a majaw, battery langai a tengman ai n-gun atsam gaw, shi a theoretical specific n-gun hta grau yawm ai. Tengman ai hte theoretical specific n-gun atsam lapran na matut mahkai lam hpe lawu na hte maren tsun dan mai ai:
Formula hta, K_E gaw voltage efficiency hpe madi madun ai; K_B gaw bai htang ai atsam hpe madi madun ai; hte K_m gaw masha law law a n-gun atsam hpe madi madun ai.
Wan jak mawdaw ni hta power battery ni hpe jai lang ai hta, battery pack a tengman ai n-gun atsam gaw, battery cell langai hkrai a n-gun atsam hta n-gun yawm ai, hpa majaw nga yang, battery pack hpe jung ai gaw, battery box ni hte maren, wire ni hpe matut mahkai na, ya aten hte wan n-gun makawp maga ai jak ni, hte kaga arung arai ni ra ai. Battery pack a hkrak ai n-gun hpe gaw, battery cell langai hkrai a n-gun hpe packaging factor hku nna law law hpe jat bang nna sawn la ai. Battery langai a matu packaging factor gaw 0.6 kaw nna 0.8 du hkra re. Battery pack a design level grau kaja wa ai hte maren, battery pack hpe hpawng de ai lam law wa ai. Dai majaw, battery pack a mass specific n-gun gaw, battery pack galaw ai lam hpe ahkyak ai masat kumla langai mi rai nga ai. Madung hku tsun ga nga yang, battery pack a mass specific energy gaw, battery cell langai hkrai a n-gun atsam hta 20% jan yawm ai.
