Battery energy ngu ai gaw, battery langai mi kaw na pru wa lu ai n-gun hpe tsun mayu ai rai nna, dai hpe W·h (sh) kW·h hku nna tsun ai. Battery energy hpe madung hku nna lawu na zawn garan nna tsun ai.
(1) Theory hte seng ai n-gun
Battery hpe n-gun dat dat ai shaloi, shi a n-gun dat dat ai n-gun gaw, wan n-gun dat n-gun (E) a manu hpe matut manoi tawn da ya nna, active material a jai lang ai lam gaw 100% rai nga ai ngu sawn la yang, n-gun dat dat ai atsam gaw theoretical atsam rai nna, ndai masa ni a npu e pru wa ai n-gun gaw theoretical n-gun, W .
(2) Tengman ai n-gun atsam
Actual energy ngu ai gaw, battery hpe n-gun dat ai shaloi, battery kaw na teng sha pru wa ai n-gun hpe tsun mayu ai. Number hku yu yang, battery a tengman ai n-gun dat n-gun, n-gun dat n-gun, n-gun dat aten a integral hte maren sha re, ngu ai gaw .
Practical engineering jai lang ai lam ni hta, battery langai a tengman ai n-gun hpe battery pack a rated capacity hte battery a shadawn shadang discharge voltage lahkawng yan hpe lang nna, sawn shapraw ai lam law law nga ai.
Active material hpe tup hkrak n mai jai lang ai majaw, battery a bungli galaw ai voltage gaw shi a electromotive n-gun hta galoi mung n law ai majaw, battery a tengman ai n-gun gaw shi a theoretical n-gun hta galoi mung n law ai.
(3) Yawng N-gun
Total energy ngu ai gaw, battery langai a prat tup na wan n-gun yawng hpe W·h hku shadawn ai hpe tsun mayu ai.
(4) Charge galaw ai n-gun
Charging energy ngu ai gaw, charge galaw ai hku nna battery kata de bang ai wan n-gun hpe tsun mayu ai rai nna, W·h hku shadawn ai.
(5) N-gun hpe shapraw kau ai
Discharging energy ngu ai gaw, battery kaw na pru wa ai wan n-gun hpe tsun mayu ai rai nna, W·h hku shadawn ai.Battery langai a n-gun, shing nrai, battery a unit mass (sh) unit volume langai shapraw lu ai n-gun hpe, dai hte maren mass energy ngu shamying ma ai.Battery density (W·h/kg) hte volumetric n-gun (volumetric energy) hpe mung chye lu ai. power battery ni a hkam kaja lam hpe jep joi na matu ahkyak ai masat kumla ni rai nga ai. Wan jak mawdaw lang ai hta, battery langai a specific energy gaw mawdaw a n-gun yawng hte mawdaw gau ai shara hpe hkra machyi shangun nna, volumetric energy gaw battery tawn da ai shara hpe hkra machyi shangun ai. Specific energy gaw battery amyu myu a bungli galaw ai lam hpe shingdaw yu na matu mung ahkyak ai masat kumla langai rai nga ai. Specific energy hpe theoretical hku nna n-gun (W0) hte tengman ai n-gun (W’) ngu nna garan ai.
Theoretical n-gun gaw theoretical n-gun hte bung ai, battery reactants ni a unit mass (sh) unit volume hpe tup hkrak shapraw kau ai shaloi theoretical hku nna pru wa lu ai n-gun hpe tsun mayu ai. Tengman ai n-gun gaw tengman ai n-gun hte bung nna, battery reactants ni a unit mass (sh) unit volume hpe tup hkrak shapraw kau ai shaloi pru wa ai tengman ai n-gun hpe madi madun ai. Battery a tengman ai pru wa ai n-gun hte shi a mass (sh) volume a ratio hku nna laklai nga ai.
shing nrai
Formula hta C-- gaw battery a mass hpe madi madun ai; V--battery a nsen hpe tsun ai. Lam amyu myu a majaw, battery langai a tengman ai laksan n-gun gaw, shi a theoretical laksan n-gun hta grau npu nga ai. Tengman ai hte theoretical specific energy lapran na matut mahkai lam hpe lawu na hte maren tsun dan mai ai:
Formula hta K_E gaw voltage n-gun hpe madi madun ai; K_B gaw bai htang ai lam hpe madi madun ai; hte K_m gaw mass n-gun hpe madi madun ai.
Wan jak mawdaw ni hta power battery ni hpe jai lang ai shaloi, battery pack a tengman ai laksan n-gun gaw, battery cell langai hkrai a laksan n-gun hta yawm ai, hpa majaw nga yang, battery pack hpe jung na matu, htuk manu ai battery box ni, matut mahkai ai wire ni, current hte voltage hpe makawp maga ai arung arai ni, kaga arung arai ni ra ai majaw re. Battery pack a laksan n-gun hpe, battery cell langai hpra a laksan n-gun hpe packaging factor hte garan nna, sawn la ai. Battery langai a matu packaging factor gaw 0.6 kaw nna 0.8 du hkra rai nga ai. Battery pack a design madang grau kaja wa ai hte maren, battery pack a hpawng de ai lam mung grau law wa ai. Dai majaw, battery a mass specific energy gaw, battery a bungli galaw ai lam hpe ahkyak ai hku madun dan ai lam law law 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.
